9.56/x = 2/3*((1-1/0.05)+(3/4+1/0.05)*(1/3*257.9/x*0.35805183739485175）^0.05)
    9.56/x = 2/3*((1-1/0.05)+(3/4+1/0.05)*(1/3*257.9/x*0.35805183739485175）^0.05)
    8.8/x = 2/3*((1-1/0.05)+(3/4+1/0.05)*(1/3*262/x*0.35805183739485175）^0.05)
    9.29/x = 2/3*((1-1/0.05)+(3/4+1/0.05)*(1/3*259.7/x*0.35805183739485175）^0.05)
    10.34/x = 2/3*((1-1/0.05)+(3/4+1/0.05)*(1/3*279.5/x*0.35805183739485175）^0.05)
    12.52/x = 2/3*((1-1/0.05)+(3/4+1/0.05)*(1/3*278.7/x*0.35805183739485175）^0.05)
    0.4438/(3.211-x)+1.0409/(2.535-x)+0.3510/(1-x)+0.0439/(0.414-x)=0.25
    8.44/x=2/3*((1-1/0.05)+(3/4+1/0.05)*(1/3*244.6/x*0.35805183739485175）^0.05)
    10.34/x=2/3*((1-1/0.5)+(3/4+1/0.5)*(1/3*279.5/x*0.35805183739485175）^0.5)
    12.52/x=2/3*((1-1/0.5)+(3/4+1/0.5)*(1/3*278.7/x*0.35805183739485175）^0.5)
    4xxx-47x-5=0
    (X-X/1.13*0.1)/7.17=0.36
    (X-X/1.13*0.1)/7.17=1.72
    (X-X/1.13*0.1)/7.17=0.489
    27*x^2-909*x+104=0
    (X-X/1.13*0.1)/7.17=0.076
    X+X*0.06=475
    X+X*0.06=575
    X+X*0.06=1050
    X+X*0.06=400

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