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Finding the Fourth Proportional to 169.68, 234.15 and 96

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Solution

The fourth proportional to 169.68, 234.15 and 96 is: 132.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    169.68 : 234.15 = 96 : x
  2. Step 2: Convert to fraction form
    169.68/234.15 = 96/x
  3. Step 3: Cross multiply
    169.68x = 234.15 × 96
  4. Step 4: Simplify right side
    169.68x = 22,478.40
  5. Step 5: Solve for x
    x = 22,478.40/169.68
  6. Step 6: Final answer
    x = 132.48

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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.