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Finding the Fourth Proportional to 79,747.74, 110,054.70 and 43,940.48

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Solution

The fourth proportional to 79,747.74, 110,054.70 and 43,940.48 is: 60,639.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,747.74 : 110,054.70 = 43,940.48 : x
  2. Step 2: Convert to fraction form
    79,747.74/110,054.70 = 43,940.48/x
  3. Step 3: Cross multiply
    79,747.74x = 110,054.70 × 43,940.48
  4. Step 4: Simplify right side
    79,747.74x = 4,835,855,793.98
  5. Step 5: Solve for x
    x = 4,835,855,793.98/79,747.74
  6. Step 6: Final answer
    x = 60,639.41

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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.