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Finding the Fourth Proportional to 167.79, 251.67 and 46.05

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Solution

The fourth proportional to 167.79, 251.67 and 46.05 is: 69.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    167.79 : 251.67 = 46.05 : x
  2. Step 2: Convert to fraction form
    167.79/251.67 = 46.05/x
  3. Step 3: Cross multiply
    167.79x = 251.67 × 46.05
  4. Step 4: Simplify right side
    167.79x = 11,589.40
  5. Step 5: Solve for x
    x = 11,589.40/167.79
  6. Step 6: Final answer
    x = 69.07

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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.