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Finding the Fourth Proportional to 87,230.52, 120,438.90 and 58,593.78

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Solution

The fourth proportional to 87,230.52, 120,438.90 and 58,593.78 is: 80,900.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,230.52 : 120,438.90 = 58,593.78 : x
  2. Step 2: Convert to fraction form
    87,230.52/120,438.90 = 58,593.78/x
  3. Step 3: Cross multiply
    87,230.52x = 120,438.90 × 58,593.78
  4. Step 4: Simplify right side
    87,230.52x = 7,056,970,410.04
  5. Step 5: Solve for x
    x = 7,056,970,410.04/87,230.52
  6. Step 6: Final answer
    x = 80,900.24

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.