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Finding the Fourth Proportional to 311.74, 466.77 and 167.02

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Solution

The fourth proportional to 311.74, 466.77 and 167.02 is: 250.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    311.74 : 466.77 = 167.02 : x
  2. Step 2: Convert to fraction form
    311.74/466.77 = 167.02/x
  3. Step 3: Cross multiply
    311.74x = 466.77 × 167.02
  4. Step 4: Simplify right side
    311.74x = 77,959.93
  5. Step 5: Solve for x
    x = 77,959.93/311.74
  6. Step 6: Final answer
    x = 250.08

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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.