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Finding the Fourth Proportional to 273,744.48, 377,229.08 and 209,286.56

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Solution

The fourth proportional to 273,744.48, 377,229.08 and 209,286.56 is: 288,403.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,744.48 : 377,229.08 = 209,286.56 : x
  2. Step 2: Convert to fraction form
    273,744.48/377,229.08 = 209,286.56/x
  3. Step 3: Cross multiply
    273,744.48x = 377,229.08 × 209,286.56
  4. Step 4: Simplify right side
    273,744.48x = 78,948,976,485.16
  5. Step 5: Solve for x
    x = 78,948,976,485.16/273,744.48
  6. Step 6: Final answer
    x = 288,403.90

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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.