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Finding the Fourth Proportional to 168,644.20, 252,933.90 and 50,319.40

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Solution

The fourth proportional to 168,644.20, 252,933.90 and 50,319.40 is: 75,469.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,644.20 : 252,933.90 = 50,319.40 : x
  2. Step 2: Convert to fraction form
    168,644.20/252,933.90 = 50,319.40/x
  3. Step 3: Cross multiply
    168,644.20x = 252,933.90 × 50,319.40
  4. Step 4: Simplify right side
    168,644.20x = 12,727,482,087.66
  5. Step 5: Solve for x
    x = 12,727,482,087.66/168,644.20
  6. Step 6: Final answer
    x = 75,469.43

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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.