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Finding the Fourth Proportional to 311.32, 467.25 and 167.14

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Solution

The fourth proportional to 311.32, 467.25 and 167.14 is: 250.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    311.32 : 467.25 = 167.14 : x
  2. Step 2: Convert to fraction form
    311.32/467.25 = 167.14/x
  3. Step 3: Cross multiply
    311.32x = 467.25 × 167.14
  4. Step 4: Simplify right side
    311.32x = 78,096.17
  5. Step 5: Solve for x
    x = 78,096.17/311.32
  6. Step 6: Final answer
    x = 250.85

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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.