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Finding the Fourth Proportional to 96.52, 144.76 and 45.14

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Solution

The fourth proportional to 96.52, 144.76 and 45.14 is: 67.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    96.52 : 144.76 = 45.14 : x
  2. Step 2: Convert to fraction form
    96.52/144.76 = 45.14/x
  3. Step 3: Cross multiply
    96.52x = 144.76 × 45.14
  4. Step 4: Simplify right side
    96.52x = 6,534.98
  5. Step 5: Solve for x
    x = 6,534.98/96.52
  6. Step 6: Final answer
    x = 67.71

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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.