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Finding the Fourth Proportional to 96.32, 132.56 and 92.64

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Solution

The fourth proportional to 96.32, 132.56 and 92.64 is: 127.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.32 : 132.56 = 92.64 : x
  2. Step 2: Convert to fraction form
    96.32/132.56 = 92.64/x
  3. Step 3: Cross multiply
    96.32x = 132.56 × 92.64
  4. Step 4: Simplify right side
    96.32x = 12,280.36
  5. Step 5: Solve for x
    x = 12,280.36/96.32
  6. Step 6: Final answer
    x = 127.50

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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.