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Finding the Fourth Proportional to 95.92, 132.24 and 74.16

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Solution

The fourth proportional to 95.92, 132.24 and 74.16 is: 102.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    95.92 : 132.24 = 74.16 : x
  2. Step 2: Convert to fraction form
    95.92/132.24 = 74.16/x
  3. Step 3: Cross multiply
    95.92x = 132.24 × 74.16
  4. Step 4: Simplify right side
    95.92x = 9,806.92
  5. Step 5: Solve for x
    x = 9,806.92/95.92
  6. Step 6: Final answer
    x = 102.24

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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.