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Finding the Fourth Proportional to 95.46, 131.67 and 79.92

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Solution

The fourth proportional to 95.46, 131.67 and 79.92 is: 110.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    95.46 : 131.67 = 79.92 : x
  2. Step 2: Convert to fraction form
    95.46/131.67 = 79.92/x
  3. Step 3: Cross multiply
    95.46x = 131.67 × 79.92
  4. Step 4: Simplify right side
    95.46x = 10,523.07
  5. Step 5: Solve for x
    x = 10,523.07/95.46
  6. Step 6: Final answer
    x = 110.24

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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.