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Finding the Fourth Proportional to 269.92, 404.97 and 167.28

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Solution

The fourth proportional to 269.92, 404.97 and 167.28 is: 250.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    269.92 : 404.97 = 167.28 : x
  2. Step 2: Convert to fraction form
    269.92/404.97 = 167.28/x
  3. Step 3: Cross multiply
    269.92x = 404.97 × 167.28
  4. Step 4: Simplify right side
    269.92x = 67,743.38
  5. Step 5: Solve for x
    x = 67,743.38/269.92
  6. Step 6: Final answer
    x = 250.98

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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.