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Finding the Fourth Proportional to 297,269.68, 445,933.67 and 84,039.20

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Solution

The fourth proportional to 297,269.68, 445,933.67 and 84,039.20 is: 126,067.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,269.68 : 445,933.67 = 84,039.20 : x
  2. Step 2: Convert to fraction form
    297,269.68/445,933.67 = 84,039.20/x
  3. Step 3: Cross multiply
    297,269.68x = 445,933.67 × 84,039.20
  4. Step 4: Simplify right side
    297,269.68x = 37,475,908,879.86
  5. Step 5: Solve for x
    x = 37,475,908,879.86/297,269.68
  6. Step 6: Final answer
    x = 126,067.04

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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.