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Finding the Fourth Proportional to 169.92, 234.48 and 96.24

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Solution

The fourth proportional to 169.92, 234.48 and 96.24 is: 132.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    169.92 : 234.48 = 96.24 : x
  2. Step 2: Convert to fraction form
    169.92/234.48 = 96.24/x
  3. Step 3: Cross multiply
    169.92x = 234.48 × 96.24
  4. Step 4: Simplify right side
    169.92x = 22,566.60
  5. Step 5: Solve for x
    x = 22,566.60/169.92
  6. Step 6: Final answer
    x = 132.81

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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.