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Finding the Fourth Proportional to 81,545.52, 122,355.72 and 48,331.44

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Solution

The fourth proportional to 81,545.52, 122,355.72 and 48,331.44 is: 72,519.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,545.52 : 122,355.72 = 48,331.44 : x
  2. Step 2: Convert to fraction form
    81,545.52/122,355.72 = 48,331.44/x
  3. Step 3: Cross multiply
    81,545.52x = 122,355.72 × 48,331.44
  4. Step 4: Simplify right side
    81,545.52x = 5,913,628,139.84
  5. Step 5: Solve for x
    x = 5,913,628,139.84/81,545.52
  6. Step 6: Final answer
    x = 72,519.35

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