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Finding the Fourth Proportional to 87,616.80, 131,230.80 and 75,952.80

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Solution

The fourth proportional to 87,616.80, 131,230.80 and 75,952.80 is: 113,760.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,616.80 : 131,230.80 = 75,952.80 : x
  2. Step 2: Convert to fraction form
    87,616.80/131,230.80 = 75,952.80/x
  3. Step 3: Cross multiply
    87,616.80x = 131,230.80 × 75,952.80
  4. Step 4: Simplify right side
    87,616.80x = 9,967,346,706.24
  5. Step 5: Solve for x
    x = 9,967,346,706.24/87,616.80
  6. Step 6: Final answer
    x = 113,760.68

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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.