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Finding the Fourth Proportional to 292.05, 402.96 and 167.74

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Solution

The fourth proportional to 292.05, 402.96 and 167.74 is: 231.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    292.05 : 402.96 = 167.74 : x
  2. Step 2: Convert to fraction form
    292.05/402.96 = 167.74/x
  3. Step 3: Cross multiply
    292.05x = 402.96 × 167.74
  4. Step 4: Simplify right side
    292.05x = 67,591.67
  5. Step 5: Solve for x
    x = 67,591.67/292.05
  6. Step 6: Final answer
    x = 231.44

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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.