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Finding the Fourth Proportional to 87,482.86, 120,664.14 and 58,396.56

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Solution

The fourth proportional to 87,482.86, 120,664.14 and 58,396.56 is: 80,545.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    87,482.86 : 120,664.14 = 58,396.56 : x
  2. Step 2: Convert to fraction form
    87,482.86/120,664.14 = 58,396.56/x
  3. Step 3: Cross multiply
    87,482.86x = 120,664.14 × 58,396.56
  4. Step 4: Simplify right side
    87,482.86x = 7,046,370,691.36
  5. Step 5: Solve for x
    x = 7,046,370,691.36/87,482.86
  6. Step 6: Final answer
    x = 80,545.73

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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.