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Finding the Fourth Proportional to 87,645.85, 131,490.84 and 24,465.88

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Solution

The fourth proportional to 87,645.85, 131,490.84 and 24,465.88 is: 36,704.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,645.85 : 131,490.84 = 24,465.88 : x
  2. Step 2: Convert to fraction form
    87,645.85/131,490.84 = 24,465.88/x
  3. Step 3: Cross multiply
    87,645.85x = 131,490.84 × 24,465.88
  4. Step 4: Simplify right side
    87,645.85x = 3,217,039,368.65
  5. Step 5: Solve for x
    x = 3,217,039,368.65/87,645.85
  6. Step 6: Final answer
    x = 36,704.98

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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.