27×36/137+136×33/127+180×68/137

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27×36/137+136×33/127+180×68/137
27×36/137+136×33/127+180×68/137

27×36/137+136×33/127+180×68/137
27*36/137+136*33/127+180*68/137 = 131.77653888154