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Finding the Fourth Proportional to 54,205.67, 81,249.19 and 27,911.99

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Solution

The fourth proportional to 54,205.67, 81,249.19 and 27,911.99 is: 41,837.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,205.67 : 81,249.19 = 27,911.99 : x
  2. Step 2: Convert to fraction form
    54,205.67/81,249.19 = 27,911.99/x
  3. Step 3: Cross multiply
    54,205.67x = 81,249.19 × 27,911.99
  4. Step 4: Simplify right side
    54,205.67x = 2,267,826,578.79
  5. Step 5: Solve for x
    x = 2,267,826,578.79/54,205.67
  6. Step 6: Final answer
    x = 41,837.44

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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.