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Finding the Fourth Proportional to 273,391.80, 410,069.48 and 131,338.86

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Solution

The fourth proportional to 273,391.80, 410,069.48 and 131,338.86 is: 196,999.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,391.80 : 410,069.48 = 131,338.86 : x
  2. Step 2: Convert to fraction form
    273,391.80/410,069.48 = 131,338.86/x
  3. Step 3: Cross multiply
    273,391.80x = 410,069.48 × 131,338.86
  4. Step 4: Simplify right side
    273,391.80x = 53,858,057,367.30
  5. Step 5: Solve for x
    x = 53,858,057,367.30/273,391.80
  6. Step 6: Final answer
    x = 196,999.53

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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.