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Finding the Fourth Proportional to 229.46, 344.22 and 83.24

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Solution

The fourth proportional to 229.46, 344.22 and 83.24 is: 124.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    229.46 : 344.22 = 83.24 : x
  2. Step 2: Convert to fraction form
    229.46/344.22 = 83.24/x
  3. Step 3: Cross multiply
    229.46x = 344.22 × 83.24
  4. Step 4: Simplify right side
    229.46x = 28,652.87
  5. Step 5: Solve for x
    x = 28,652.87/229.46
  6. Step 6: Final answer
    x = 124.87

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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.