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Finding the Fourth Proportional to 351.33, 527.11 and 156.46

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Solution

The fourth proportional to 351.33, 527.11 and 156.46 is: 234.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    351.33 : 527.11 = 156.46 : x
  2. Step 2: Convert to fraction form
    351.33/527.11 = 156.46/x
  3. Step 3: Cross multiply
    351.33x = 527.11 × 156.46
  4. Step 4: Simplify right side
    351.33x = 82,470.85
  5. Step 5: Solve for x
    x = 82,470.85/351.33
  6. Step 6: Final answer
    x = 234.74

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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.