5.94×100000000000000000＝（0.02-2x）²÷x（0.02＋2x）
    109*100/X/1.05/90*100=176
    0.75=18/x
    113*100/X/1.05/90*100=200
    15:20=x
    54*100/X/1.05/90*100=78
    30*100/X/1.05/90*100=48
    x:20=0.75
    68*100/X/1.05/90*100=121
    x*x*x＝13000000000000000*（341+√（44178+0.0052*x*x））
    81*100/X/1.05/90*100=129
    x*x＝1.3*100000000000000000*（341+√（44178+0.00052*x*x））
    53*100/X/1.05/90*100=78
    68*100/X/1.05/90*100=101
    57*100/X/1.05/90*100=78
    55*100/X/1.05/90*100=78
    68*100/X/1.05/90*100=78
    (548-y)/y＝2.2%
    (550.1-y)/y＝2%
    (518.6-y)/y＝2.2%

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