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Finding the Fourth Proportional to 167.54, 231.22 and 126.02

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Solution

The fourth proportional to 167.54, 231.22 and 126.02 is: 173.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.54 : 231.22 = 126.02 : x
  2. Step 2: Convert to fraction form
    167.54/231.22 = 126.02/x
  3. Step 3: Cross multiply
    167.54x = 231.22 × 126.02
  4. Step 4: Simplify right side
    167.54x = 29,138.34
  5. Step 5: Solve for x
    x = 29,138.34/167.54
  6. Step 6: Final answer
    x = 173.92

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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.