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Finding the Fourth Proportional to 168,029.20, 252,067.80 and 49,685.20

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Solution

The fourth proportional to 168,029.20, 252,067.80 and 49,685.20 is: 74,534.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,029.20 : 252,067.80 = 49,685.20 : x
  2. Step 2: Convert to fraction form
    168,029.20/252,067.80 = 49,685.20/x
  3. Step 3: Cross multiply
    168,029.20x = 252,067.80 × 49,685.20
  4. Step 4: Simplify right side
    168,029.20x = 12,524,039,056.56
  5. Step 5: Solve for x
    x = 12,524,039,056.56/168,029.20
  6. Step 6: Final answer
    x = 74,534.90

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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.