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Finding the Fourth Proportional to 79,250.67, 109,365.30 and 43,440.62

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Solution

The fourth proportional to 79,250.67, 109,365.30 and 43,440.62 is: 59,947.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,250.67 : 109,365.30 = 43,440.62 : x
  2. Step 2: Convert to fraction form
    79,250.67/109,365.30 = 43,440.62/x
  3. Step 3: Cross multiply
    79,250.67x = 109,365.30 × 43,440.62
  4. Step 4: Simplify right side
    79,250.67x = 4,750,895,891.66
  5. Step 5: Solve for x
    x = 4,750,895,891.66/79,250.67
  6. Step 6: Final answer
    x = 59,947.71

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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.