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Finding the Fourth Proportional to 339,445.89, 468,442.85 and 196,211.97

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Solution

The fourth proportional to 339,445.89, 468,442.85 and 196,211.97 is: 270,776.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,445.89 : 468,442.85 = 196,211.97 : x
  2. Step 2: Convert to fraction form
    339,445.89/468,442.85 = 196,211.97/x
  3. Step 3: Cross multiply
    339,445.89x = 468,442.85 × 196,211.97
  4. Step 4: Simplify right side
    339,445.89x = 91,914,093,449.85
  5. Step 5: Solve for x
    x = 91,914,093,449.85/339,445.89
  6. Step 6: Final answer
    x = 270,776.86

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.