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Finding the Fourth Proportional to 167.62, 231.06 and 126.04

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Solution

The fourth proportional to 167.62, 231.06 and 126.04 is: 173.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.62 : 231.06 = 126.04 : x
  2. Step 2: Convert to fraction form
    167.62/231.06 = 126.04/x
  3. Step 3: Cross multiply
    167.62x = 231.06 × 126.04
  4. Step 4: Simplify right side
    167.62x = 29,122.80
  5. Step 5: Solve for x
    x = 29,122.80/167.62
  6. Step 6: Final answer
    x = 173.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.