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Finding the Fourth Proportional to 292.11, 403.17 and 167.76

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Solution

The fourth proportional to 292.11, 403.17 and 167.76 is: 231.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    292.11 : 403.17 = 167.76 : x
  2. Step 2: Convert to fraction form
    292.11/403.17 = 167.76/x
  3. Step 3: Cross multiply
    292.11x = 403.17 × 167.76
  4. Step 4: Simplify right side
    292.11x = 67,635.80
  5. Step 5: Solve for x
    x = 67,635.80/292.11
  6. Step 6: Final answer
    x = 231.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.