（12827*0.0398+X）/（12827-X）=0.1
    （1+0.0752）（1+r）=（1+0.111）^2
    93=100/（1+r）
    81=100/（1+r）^2
    81=100（1+r）^2
    x^3-2x^2-144=0
    xlnx=3.9
    xlnx=6.45
    xlnx=2.54
    3368.88+0.077x=43.68+0.0325x
    （(1344*2.52)+((x*209*56)/(1000*152)))/1344+x=0.0325
    （33.8688+（12040*x）/152000）/1344*x=0.0325
    xlnx=6.73
    xlnx=3.2
    xlnx=1.96
    （40.221+x）×1.95＝40.221+70.242-x
    （（1344*0.0252）+（（x*215*56）/1000*152））/1344+x=0.0325
    （40.221+x）×1.75＝40.221+70.242-x
    （40.221+x）×1.55＝40.221+70.242-x
    （（1344*0.0252）+（（x*512*56）/1000*152））/1344+x=0.0325

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