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Finding the Fourth Proportional to 71,871.12, 107,863.17 and 49,839.54

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Solution

The fourth proportional to 71,871.12, 107,863.17 and 49,839.54 is: 74,798.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,871.12 : 107,863.17 = 49,839.54 : x
  2. Step 2: Convert to fraction form
    71,871.12/107,863.17 = 49,839.54/x
  3. Step 3: Cross multiply
    71,871.12x = 107,863.17 × 49,839.54
  4. Step 4: Simplify right side
    71,871.12x = 5,375,850,775.74
  5. Step 5: Solve for x
    x = 5,375,850,775.74/71,871.12
  6. Step 6: Final answer
    x = 74,798.48

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