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Finding the Fourth Proportional to 79,673.57, 109,947.40 and 43,863.85

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Solution

The fourth proportional to 79,673.57, 109,947.40 and 43,863.85 is: 60,530.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,673.57 : 109,947.40 = 43,863.85 : x
  2. Step 2: Convert to fraction form
    79,673.57/109,947.40 = 43,863.85/x
  3. Step 3: Cross multiply
    79,673.57x = 109,947.40 × 43,863.85
  4. Step 4: Simplify right side
    79,673.57x = 4,822,716,721.86
  5. Step 5: Solve for x
    x = 4,822,716,721.86/79,673.57
  6. Step 6: Final answer
    x = 60,530.94

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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.