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Finding the Fourth Proportional to 87,506.87, 131,311.28 and 36,902.80

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Solution

The fourth proportional to 87,506.87, 131,311.28 and 36,902.80 is: 55,375.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,506.87 : 131,311.28 = 36,902.80 : x
  2. Step 2: Convert to fraction form
    87,506.87/131,311.28 = 36,902.80/x
  3. Step 3: Cross multiply
    87,506.87x = 131,311.28 × 36,902.80
  4. Step 4: Simplify right side
    87,506.87x = 4,845,753,903.58
  5. Step 5: Solve for x
    x = 4,845,753,903.58/87,506.87
  6. Step 6: Final answer
    x = 55,375.70

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1.5x scale

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.