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Finding the Fourth Proportional to 88,687.80, 133,043.85 and 29,517.30

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Solution

The fourth proportional to 88,687.80, 133,043.85 and 29,517.30 is: 44,279.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,687.80 : 133,043.85 = 29,517.30 : x
  2. Step 2: Convert to fraction form
    88,687.80/133,043.85 = 29,517.30/x
  3. Step 3: Cross multiply
    88,687.80x = 133,043.85 × 29,517.30
  4. Step 4: Simplify right side
    88,687.80x = 3,927,095,233.61
  5. Step 5: Solve for x
    x = 3,927,095,233.61/88,687.80
  6. Step 6: Final answer
    x = 44,279.99

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.