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Finding the Fourth Proportional to 57,201.88, 78,937.60 and 31,708.15

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Solution

The fourth proportional to 57,201.88, 78,937.60 and 31,708.15 is: 43,756.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,201.88 : 78,937.60 = 31,708.15 : x
  2. Step 2: Convert to fraction form
    57,201.88/78,937.60 = 31,708.15/x
  3. Step 3: Cross multiply
    57,201.88x = 78,937.60 × 31,708.15
  4. Step 4: Simplify right side
    57,201.88x = 2,502,965,261.44
  5. Step 5: Solve for x
    x = 2,502,965,261.44/57,201.88
  6. Step 6: Final answer
    x = 43,756.70

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