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Finding the Fourth Proportional to 103,781.52, 155,860.20 and 95,446.62

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Solution

The fourth proportional to 103,781.52, 155,860.20 and 95,446.62 is: 143,342.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,781.52 : 155,860.20 = 95,446.62 : x
  2. Step 2: Convert to fraction form
    103,781.52/155,860.20 = 95,446.62/x
  3. Step 3: Cross multiply
    103,781.52x = 155,860.20 × 95,446.62
  4. Step 4: Simplify right side
    103,781.52x = 14,876,329,282.52
  5. Step 5: Solve for x
    x = 14,876,329,282.52/103,781.52
  6. Step 6: Final answer
    x = 143,342.76

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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.