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Finding the Fourth Proportional to 269.22, 404.08 and 177.97

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Solution

The fourth proportional to 269.22, 404.08 and 177.97 is: 267.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    269.22 : 404.08 = 177.97 : x
  2. Step 2: Convert to fraction form
    269.22/404.08 = 177.97/x
  3. Step 3: Cross multiply
    269.22x = 404.08 × 177.97
  4. Step 4: Simplify right side
    269.22x = 71,914.12
  5. Step 5: Solve for x
    x = 71,914.12/269.22
  6. Step 6: Final answer
    x = 267.12

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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.