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Finding the Fourth Proportional to 167.68, 251.16 and 95.32

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Solution

The fourth proportional to 167.68, 251.16 and 95.32 is: 142.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.68 : 251.16 = 95.32 : x
  2. Step 2: Convert to fraction form
    167.68/251.16 = 95.32/x
  3. Step 3: Cross multiply
    167.68x = 251.16 × 95.32
  4. Step 4: Simplify right side
    167.68x = 23,940.57
  5. Step 5: Solve for x
    x = 23,940.57/167.68
  6. Step 6: Final answer
    x = 142.78

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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.