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Finding the Fourth Proportional to 297.92, 446.86 and 167.90

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Solution

The fourth proportional to 297.92, 446.86 and 167.90 is: 251.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    297.92 : 446.86 = 167.90 : x
  2. Step 2: Convert to fraction form
    297.92/446.86 = 167.90/x
  3. Step 3: Cross multiply
    297.92x = 446.86 × 167.90
  4. Step 4: Simplify right side
    297.92x = 75,027.79
  5. Step 5: Solve for x
    x = 75,027.79/297.92
  6. Step 6: Final answer
    x = 251.84

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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.