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Finding the Fourth Proportional to 82,399.80, 113,711.40 and 44,673.78

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Solution

The fourth proportional to 82,399.80, 113,711.40 and 44,673.78 is: 61,649.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,399.80 : 113,711.40 = 44,673.78 : x
  2. Step 2: Convert to fraction form
    82,399.80/113,711.40 = 44,673.78/x
  3. Step 3: Cross multiply
    82,399.80x = 113,711.40 × 44,673.78
  4. Step 4: Simplify right side
    82,399.80x = 5,079,918,067.09
  5. Step 5: Solve for x
    x = 5,079,918,067.09/82,399.80
  6. Step 6: Final answer
    x = 61,649.64

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.