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Finding the Fourth Proportional to 167.89, 252.01 and 148.75

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Solution

The fourth proportional to 167.89, 252.01 and 148.75 is: 223.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.89 : 252.01 = 148.75 : x
  2. Step 2: Convert to fraction form
    167.89/252.01 = 148.75/x
  3. Step 3: Cross multiply
    167.89x = 252.01 × 148.75
  4. Step 4: Simplify right side
    167.89x = 37,486.49
  5. Step 5: Solve for x
    x = 37,486.49/167.89
  6. Step 6: Final answer
    x = 223.28

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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.