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Finding the Fourth Proportional to 198.08, 296.64 and 167.44

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Solution

The fourth proportional to 198.08, 296.64 and 167.44 is: 250.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    198.08 : 296.64 = 167.44 : x
  2. Step 2: Convert to fraction form
    198.08/296.64 = 167.44/x
  3. Step 3: Cross multiply
    198.08x = 296.64 × 167.44
  4. Step 4: Simplify right side
    198.08x = 49,669.40
  5. Step 5: Solve for x
    x = 49,669.40/198.08
  6. Step 6: Final answer
    x = 250.75

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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.