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Finding the Fourth Proportional to 269.44, 404.16 and 167.38

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Solution

The fourth proportional to 269.44, 404.16 and 167.38 is: 251.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    269.44 : 404.16 = 167.38 : x
  2. Step 2: Convert to fraction form
    269.44/404.16 = 167.38/x
  3. Step 3: Cross multiply
    269.44x = 404.16 × 167.38
  4. Step 4: Simplify right side
    269.44x = 67,648.30
  5. Step 5: Solve for x
    x = 67,648.30/269.44
  6. Step 6: Final answer
    x = 251.07

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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.