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Finding the Fourth Proportional to 79,511.49, 109,723.41 and 43,701.39

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Solution

The fourth proportional to 79,511.49, 109,723.41 and 43,701.39 is: 60,306.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,511.49 : 109,723.41 = 43,701.39 : x
  2. Step 2: Convert to fraction form
    79,511.49/109,723.41 = 43,701.39/x
  3. Step 3: Cross multiply
    79,511.49x = 109,723.41 × 43,701.39
  4. Step 4: Simplify right side
    79,511.49x = 4,795,065,532.54
  5. Step 5: Solve for x
    x = 4,795,065,532.54/79,511.49
  6. Step 6: Final answer
    x = 60,306.57

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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.