if a, b, c are positive real numbers such that (a+b-c)/c = (a-b+c)/b=( – InterviewSolution

1.	if a, b, c are positive real numbers such that (a+b-c)/c = (a-b+c)/b=(-a+b+c)/a, find the value of (a+b)(b+c)(c+a)/abc
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