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Finding the Fourth Proportional to 167.69, 251.52 and 65.03

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Solution

The fourth proportional to 167.69, 251.52 and 65.03 is: 97.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.69 : 251.52 = 65.03 : x
  2. Step 2: Convert to fraction form
    167.69/251.52 = 65.03/x
  3. Step 3: Cross multiply
    167.69x = 251.52 × 65.03
  4. Step 4: Simplify right side
    167.69x = 16,356.35
  5. Step 5: Solve for x
    x = 16,356.35/167.69
  6. Step 6: Final answer
    x = 97.54

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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.