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Finding the Fourth Proportional to 95.91, 132.32 and 76.25

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Solution

The fourth proportional to 95.91, 132.32 and 76.25 is: 105.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    95.91 : 132.32 = 76.25 : x
  2. Step 2: Convert to fraction form
    95.91/132.32 = 76.25/x
  3. Step 3: Cross multiply
    95.91x = 132.32 × 76.25
  4. Step 4: Simplify right side
    95.91x = 10,088.36
  5. Step 5: Solve for x
    x = 10,088.36/95.91
  6. Step 6: Final answer
    x = 105.19

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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.