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Finding the Fourth Proportional to 79,757.89, 110,070.79 and 43,947.89

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Solution

The fourth proportional to 79,757.89, 110,070.79 and 43,947.89 is: 60,650.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,757.89 : 110,070.79 = 43,947.89 : x
  2. Step 2: Convert to fraction form
    79,757.89/110,070.79 = 43,947.89/x
  3. Step 3: Cross multiply
    79,757.89x = 110,070.79 × 43,947.89
  4. Step 4: Simplify right side
    79,757.89x = 4,837,378,723.67
  5. Step 5: Solve for x
    x = 4,837,378,723.67/79,757.89
  6. Step 6: Final answer
    x = 60,650.79

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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.