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Finding the Fourth Proportional to 79,744.16, 110,053.22 and 43,940.61

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Solution

The fourth proportional to 79,744.16, 110,053.22 and 43,940.61 is: 60,641.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,744.16 : 110,053.22 = 43,940.61 : x
  2. Step 2: Convert to fraction form
    79,744.16/110,053.22 = 43,940.61/x
  3. Step 3: Cross multiply
    79,744.16x = 110,053.22 × 43,940.61
  4. Step 4: Simplify right side
    79,744.16x = 4,835,805,399.56
  5. Step 5: Solve for x
    x = 4,835,805,399.56/79,744.16
  6. Step 6: Final answer
    x = 60,641.50

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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.