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Finding the Fourth Proportional to 62,138.57, 85,721.91 and 42,002.48

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Solution

The fourth proportional to 62,138.57, 85,721.91 and 42,002.48 is: 57,943.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,138.57 : 85,721.91 = 42,002.48 : x
  2. Step 2: Convert to fraction form
    62,138.57/85,721.91 = 42,002.48/x
  3. Step 3: Cross multiply
    62,138.57x = 85,721.91 × 42,002.48
  4. Step 4: Simplify right side
    62,138.57x = 3,600,532,810.34
  5. Step 5: Solve for x
    x = 3,600,532,810.34/62,138.57
  6. Step 6: Final answer
    x = 57,943.61

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