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Finding the Fourth Proportional to 167.83, 251.79 and 52.27

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Solution

The fourth proportional to 167.83, 251.79 and 52.27 is: 78.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.83 : 251.79 = 52.27 : x
  2. Step 2: Convert to fraction form
    167.83/251.79 = 52.27/x
  3. Step 3: Cross multiply
    167.83x = 251.79 × 52.27
  4. Step 4: Simplify right side
    167.83x = 13,160.24
  5. Step 5: Solve for x
    x = 13,160.24/167.83
  6. Step 6: Final answer
    x = 78.42

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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.