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Finding the Fourth Proportional to 167.28, 251.04 and 113.04

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Solution

The fourth proportional to 167.28, 251.04 and 113.04 is: 169.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.28 : 251.04 = 113.04 : x
  2. Step 2: Convert to fraction form
    167.28/251.04 = 113.04/x
  3. Step 3: Cross multiply
    167.28x = 251.04 × 113.04
  4. Step 4: Simplify right side
    167.28x = 28,377.56
  5. Step 5: Solve for x
    x = 28,377.56/167.28
  6. Step 6: Final answer
    x = 169.64

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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.