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Finding the Fourth Proportional to 297,260.45, 445,919.85 and 84,029.97

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Solution

The fourth proportional to 297,260.45, 445,919.85 and 84,029.97 is: 126,053.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    297,260.45 : 445,919.85 = 84,029.97 : x
  2. Step 2: Convert to fraction form
    297,260.45/445,919.85 = 84,029.97/x
  3. Step 3: Cross multiply
    297,260.45x = 445,919.85 × 84,029.97
  4. Step 4: Simplify right side
    297,260.45x = 37,470,633,290.10
  5. Step 5: Solve for x
    x = 37,470,633,290.10/297,260.45
  6. Step 6: Final answer
    x = 126,053.21

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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.