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Finding the Fourth Proportional to 95.76, 132.16 and 61.24

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Solution

The fourth proportional to 95.76, 132.16 and 61.24 is: 84.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    95.76 : 132.16 = 61.24 : x
  2. Step 2: Convert to fraction form
    95.76/132.16 = 61.24/x
  3. Step 3: Cross multiply
    95.76x = 132.16 × 61.24
  4. Step 4: Simplify right side
    95.76x = 8,093.48
  5. Step 5: Solve for x
    x = 8,093.48/95.76
  6. Step 6: Final answer
    x = 84.52

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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.