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Finding the Fourth Proportional to 475.18, 712.60 and 167

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Solution

The fourth proportional to 475.18, 712.60 and 167 is: 250.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    475.18 : 712.60 = 167 : x
  2. Step 2: Convert to fraction form
    475.18/712.60 = 167/x
  3. Step 3: Cross multiply
    475.18x = 712.60 × 167
  4. Step 4: Simplify right side
    475.18x = 119,004.20
  5. Step 5: Solve for x
    x = 119,004.20/475.18
  6. Step 6: Final answer
    x = 250.44

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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.