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Finding the Fourth Proportional to 411.24, 616.98 and 167.94

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Solution

The fourth proportional to 411.24, 616.98 and 167.94 is: 251.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    411.24 : 616.98 = 167.94 : x
  2. Step 2: Convert to fraction form
    411.24/616.98 = 167.94/x
  3. Step 3: Cross multiply
    411.24x = 616.98 × 167.94
  4. Step 4: Simplify right side
    411.24x = 103,615.62
  5. Step 5: Solve for x
    x = 103,615.62/411.24
  6. Step 6: Final answer
    x = 251.96

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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.