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Finding the Fourth Proportional to 167.57, 231.24 and 96.68

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Solution

The fourth proportional to 167.57, 231.24 and 96.68 is: 133.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.57 : 231.24 = 96.68 : x
  2. Step 2: Convert to fraction form
    167.57/231.24 = 96.68/x
  3. Step 3: Cross multiply
    167.57x = 231.24 × 96.68
  4. Step 4: Simplify right side
    167.57x = 22,356.28
  5. Step 5: Solve for x
    x = 22,356.28/167.57
  6. Step 6: Final answer
    x = 133.41

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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.