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Finding the Fourth Proportional to 232.24, 348.40 and 69.92

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Solution

The fourth proportional to 232.24, 348.40 and 69.92 is: 104.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    232.24 : 348.40 = 69.92 : x
  2. Step 2: Convert to fraction form
    232.24/348.40 = 69.92/x
  3. Step 3: Cross multiply
    232.24x = 348.40 × 69.92
  4. Step 4: Simplify right side
    232.24x = 24,360.13
  5. Step 5: Solve for x
    x = 24,360.13/232.24
  6. Step 6: Final answer
    x = 104.89

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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.