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Finding the Fourth Proportional to 269.62, 404.51 and 132.67

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Solution

The fourth proportional to 269.62, 404.51 and 132.67 is: 199.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    269.62 : 404.51 = 132.67 : x
  2. Step 2: Convert to fraction form
    269.62/404.51 = 132.67/x
  3. Step 3: Cross multiply
    269.62x = 404.51 × 132.67
  4. Step 4: Simplify right side
    269.62x = 53,666.34
  5. Step 5: Solve for x
    x = 53,666.34/269.62
  6. Step 6: Final answer
    x = 199.04

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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.