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Finding the Fourth Proportional to 96.10, 132.61 and 54.08

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Solution

The fourth proportional to 96.10, 132.61 and 54.08 is: 74.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.10 : 132.61 = 54.08 : x
  2. Step 2: Convert to fraction form
    96.10/132.61 = 54.08/x
  3. Step 3: Cross multiply
    96.10x = 132.61 × 54.08
  4. Step 4: Simplify right side
    96.10x = 7,171.55
  5. Step 5: Solve for x
    x = 7,171.55/96.10
  6. Step 6: Final answer
    x = 74.63

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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.