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Finding the Fourth Proportional to 96.96, 133.76 and 96.32

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Solution

The fourth proportional to 96.96, 133.76 and 96.32 is: 132.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.96 : 133.76 = 96.32 : x
  2. Step 2: Convert to fraction form
    96.96/133.76 = 96.32/x
  3. Step 3: Cross multiply
    96.96x = 133.76 × 96.32
  4. Step 4: Simplify right side
    96.96x = 12,883.76
  5. Step 5: Solve for x
    x = 12,883.76/96.96
  6. Step 6: Final answer
    x = 132.88

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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.