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Finding the Fourth Proportional to 79,743.79, 110,052.62 and 43,940.17

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Solution

The fourth proportional to 79,743.79, 110,052.62 and 43,940.17 is: 60,640.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,743.79 : 110,052.62 = 43,940.17 : x
  2. Step 2: Convert to fraction form
    79,743.79/110,052.62 = 43,940.17/x
  3. Step 3: Cross multiply
    79,743.79x = 110,052.62 × 43,940.17
  4. Step 4: Simplify right side
    79,743.79x = 4,835,731,161.55
  5. Step 5: Solve for x
    x = 4,835,731,161.55/79,743.79
  6. Step 6: Final answer
    x = 60,640.85

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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.