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Finding the Fourth Proportional to 475.49, 712.97 and 167.25

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Solution

The fourth proportional to 475.49, 712.97 and 167.25 is: 250.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    475.49 : 712.97 = 167.25 : x
  2. Step 2: Convert to fraction form
    475.49/712.97 = 167.25/x
  3. Step 3: Cross multiply
    475.49x = 712.97 × 167.25
  4. Step 4: Simplify right side
    475.49x = 119,243.40
  5. Step 5: Solve for x
    x = 119,243.40/475.49
  6. Step 6: Final answer
    x = 250.78

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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.