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Finding the Fourth Proportional to 167.61, 251.45 and 116.28

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Solution

The fourth proportional to 167.61, 251.45 and 116.28 is: 174.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.61 : 251.45 = 116.28 : x
  2. Step 2: Convert to fraction form
    167.61/251.45 = 116.28/x
  3. Step 3: Cross multiply
    167.61x = 251.45 × 116.28
  4. Step 4: Simplify right side
    167.61x = 29,238.61
  5. Step 5: Solve for x
    x = 29,238.61/167.61
  6. Step 6: Final answer
    x = 174.44

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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.