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Finding the Fourth Proportional to 99.16, 137.04 and 95.92

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Solution

The fourth proportional to 99.16, 137.04 and 95.92 is: 132.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    99.16 : 137.04 = 95.92 : x
  2. Step 2: Convert to fraction form
    99.16/137.04 = 95.92/x
  3. Step 3: Cross multiply
    99.16x = 137.04 × 95.92
  4. Step 4: Simplify right side
    99.16x = 13,144.88
  5. Step 5: Solve for x
    x = 13,144.88/99.16
  6. Step 6: Final answer
    x = 132.56

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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.