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Finding the Fourth Proportional to 167.48, 250.96 and 126.87

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Solution

The fourth proportional to 167.48, 250.96 and 126.87 is: 190.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.48 : 250.96 = 126.87 : x
  2. Step 2: Convert to fraction form
    167.48/250.96 = 126.87/x
  3. Step 3: Cross multiply
    167.48x = 250.96 × 126.87
  4. Step 4: Simplify right side
    167.48x = 31,839.30
  5. Step 5: Solve for x
    x = 31,839.30/167.48
  6. Step 6: Final answer
    x = 190.11

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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.