(524.2-y)/y＝2.4%
    (2146.5-y)/y＝3.1%
    (2361.3-y)/y＝3.3%
    (5112.8-y)/y＝7.3%
    (5047.7-y)/y＝7.3%
    (5447.7-y)/y＝7.3%
    (5514.7-y)/y＝7%
    (5322.6-y)/y＝7.4%
    x^4+x^2+1=0
    2a^4-2238729a^2+563914=0
    2b^4-2238729b^2+563914=0
    x^2-10x-16=0
    Rec(65.1245，171.4486111)=
    x=193747.8047+14.08%x/5
    x=290621.707017143+14.08%x/3.03
    41528639.08-8031510.63-x+2934994.01=30603323
    41528639.08-8031510.63-x+2934994.01=29648219.92
    41528639.08-8031510.63-x+2934994.01=-30603323
    41528639.08-8031510.63-x+2934994.01=-2893805.45
    0.7=5*sqrt(x^2+2240x)-1.25x

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