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Finding the Fourth Proportional to 234.92, 352.20 and 113.24

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Solution

The fourth proportional to 234.92, 352.20 and 113.24 is: 169.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    234.92 : 352.20 = 113.24 : x
  2. Step 2: Convert to fraction form
    234.92/352.20 = 113.24/x
  3. Step 3: Cross multiply
    234.92x = 352.20 × 113.24
  4. Step 4: Simplify right side
    234.92x = 39,883.13
  5. Step 5: Solve for x
    x = 39,883.13/234.92
  6. Step 6: Final answer
    x = 169.77

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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.