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Finding the Fourth Proportional to 87,882.40, 131,726.40 and 48,467.80

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Solution

The fourth proportional to 87,882.40, 131,726.40 and 48,467.80 is: 72,648.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,882.40 : 131,726.40 = 48,467.80 : x
  2. Step 2: Convert to fraction form
    87,882.40/131,726.40 = 48,467.80/x
  3. Step 3: Cross multiply
    87,882.40x = 131,726.40 × 48,467.80
  4. Step 4: Simplify right side
    87,882.40x = 6,384,488,809.92
  5. Step 5: Solve for x
    x = 6,384,488,809.92/87,882.40
  6. Step 6: Final answer
    x = 72,648.09

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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.