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Finding the Fourth Proportional to 96.23, 132.81 and 61.27

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Solution

The fourth proportional to 96.23, 132.81 and 61.27 is: 84.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.23 : 132.81 = 61.27 : x
  2. Step 2: Convert to fraction form
    96.23/132.81 = 61.27/x
  3. Step 3: Cross multiply
    96.23x = 132.81 × 61.27
  4. Step 4: Simplify right side
    96.23x = 8,136.60
  5. Step 5: Solve for x
    x = 8,136.60/96.23
  6. Step 6: Final answer
    x = 84.55

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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.