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Finding the Fourth Proportional to 96.26, 132.97 and 74.70

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Solution

The fourth proportional to 96.26, 132.97 and 74.70 is: 103.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.26 : 132.97 = 74.70 : x
  2. Step 2: Convert to fraction form
    96.26/132.97 = 74.70/x
  3. Step 3: Cross multiply
    96.26x = 132.97 × 74.70
  4. Step 4: Simplify right side
    96.26x = 9,932.86
  5. Step 5: Solve for x
    x = 9,932.86/96.26
  6. Step 6: Final answer
    x = 103.19

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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.