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Finding the Fourth Proportional to 99,542.70, 137,366.55 and 57,098.43

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Solution

The fourth proportional to 99,542.70, 137,366.55 and 57,098.43 is: 78,794.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,542.70 : 137,366.55 = 57,098.43 : x
  2. Step 2: Convert to fraction form
    99,542.70/137,366.55 = 57,098.43/x
  3. Step 3: Cross multiply
    99,542.70x = 137,366.55 × 57,098.43
  4. Step 4: Simplify right side
    99,542.70x = 7,843,414,339.52
  5. Step 5: Solve for x
    x = 7,843,414,339.52/99,542.70
  6. Step 6: Final answer
    x = 78,794.47

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