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Finding the Fourth Proportional to 167.36, 251.08 and 98.94

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Solution

The fourth proportional to 167.36, 251.08 and 98.94 is: 148.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.36 : 251.08 = 98.94 : x
  2. Step 2: Convert to fraction form
    167.36/251.08 = 98.94/x
  3. Step 3: Cross multiply
    167.36x = 251.08 × 98.94
  4. Step 4: Simplify right side
    167.36x = 24,841.61
  5. Step 5: Solve for x
    x = 24,841.61/167.36
  6. Step 6: Final answer
    x = 148.43

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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.