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Finding the Fourth Proportional to 247.64, 372.20 and 167.00

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Solution

The fourth proportional to 247.64, 372.20 and 167.00 is: 250.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    247.64 : 372.20 = 167.00 : x
  2. Step 2: Convert to fraction form
    247.64/372.20 = 167.00/x
  3. Step 3: Cross multiply
    247.64x = 372.20 × 167.00
  4. Step 4: Simplify right side
    247.64x = 62,154.70
  5. Step 5: Solve for x
    x = 62,154.70/247.64
  6. Step 6: Final answer
    x = 250.99

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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.