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Finding the Fourth Proportional to 167,888.69, 251,920.52 and 74,372.57

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Solution

The fourth proportional to 167,888.69, 251,920.52 and 74,372.57 is: 111,597.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    167,888.69 : 251,920.52 = 74,372.57 : x
  2. Step 2: Convert to fraction form
    167,888.69/251,920.52 = 74,372.57/x
  3. Step 3: Cross multiply
    167,888.69x = 251,920.52 × 74,372.57
  4. Step 4: Simplify right side
    167,888.69x = 18,735,976,136.27
  5. Step 5: Solve for x
    x = 18,735,976,136.27/167,888.69
  6. Step 6: Final answer
    x = 111,597.61

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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.