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Finding the Fourth Proportional to 96.17, 132.68 and 69.92

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Solution

The fourth proportional to 96.17, 132.68 and 69.92 is: 96.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.17 : 132.68 = 69.92 : x
  2. Step 2: Convert to fraction form
    96.17/132.68 = 69.92/x
  3. Step 3: Cross multiply
    96.17x = 132.68 × 69.92
  4. Step 4: Simplify right side
    96.17x = 9,276.99
  5. Step 5: Solve for x
    x = 9,276.99/96.17
  6. Step 6: Final answer
    x = 96.46

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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.