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Finding the Fourth Proportional to 269.46, 404.22 and 113.24

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Solution

The fourth proportional to 269.46, 404.22 and 113.24 is: 169.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    269.46 : 404.22 = 113.24 : x
  2. Step 2: Convert to fraction form
    269.46/404.22 = 113.24/x
  3. Step 3: Cross multiply
    269.46x = 404.22 × 113.24
  4. Step 4: Simplify right side
    269.46x = 45,773.87
  5. Step 5: Solve for x
    x = 45,773.87/269.46
  6. Step 6: Final answer
    x = 169.87

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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.