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Finding the Fourth Proportional to 96.50, 144.54 and 93.92

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Solution

The fourth proportional to 96.50, 144.54 and 93.92 is: 140.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.50 : 144.54 = 93.92 : x
  2. Step 2: Convert to fraction form
    96.50/144.54 = 93.92/x
  3. Step 3: Cross multiply
    96.50x = 144.54 × 93.92
  4. Step 4: Simplify right side
    96.50x = 13,575.20
  5. Step 5: Solve for x
    x = 13,575.20/96.50
  6. Step 6: Final answer
    x = 140.68

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.