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Finding the Fourth Proportional to 297.86, 446.47 and 167.69

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Solution

The fourth proportional to 297.86, 446.47 and 167.69 is: 251.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    297.86 : 446.47 = 167.69 : x
  2. Step 2: Convert to fraction form
    297.86/446.47 = 167.69/x
  3. Step 3: Cross multiply
    297.86x = 446.47 × 167.69
  4. Step 4: Simplify right side
    297.86x = 74,869.25
  5. Step 5: Solve for x
    x = 74,869.25/297.86
  6. Step 6: Final answer
    x = 251.36

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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.