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Finding the Fourth Proportional to 87,630.80, 131,446.20 and 52,552.40

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Solution

The fourth proportional to 87,630.80, 131,446.20 and 52,552.40 is: 78,828.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,630.80 : 131,446.20 = 52,552.40 : x
  2. Step 2: Convert to fraction form
    87,630.80/131,446.20 = 52,552.40/x
  3. Step 3: Cross multiply
    87,630.80x = 131,446.20 × 52,552.40
  4. Step 4: Simplify right side
    87,630.80x = 6,907,813,280.88
  5. Step 5: Solve for x
    x = 6,907,813,280.88/87,630.80
  6. Step 6: Final answer
    x = 78,828.60

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