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Finding the Fourth Proportional to 269.91, 404.34 and 167.24

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Solution

The fourth proportional to 269.91, 404.34 and 167.24 is: 250.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    269.91 : 404.34 = 167.24 : x
  2. Step 2: Convert to fraction form
    269.91/404.34 = 167.24/x
  3. Step 3: Cross multiply
    269.91x = 404.34 × 167.24
  4. Step 4: Simplify right side
    269.91x = 67,619.80
  5. Step 5: Solve for x
    x = 67,619.80/269.91
  6. Step 6: Final answer
    x = 250.53

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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.