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Finding the Fourth Proportional to 99,363.97, 137,063.77 and 62,511.47

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Solution

The fourth proportional to 99,363.97, 137,063.77 and 62,511.47 is: 86,229.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,363.97 : 137,063.77 = 62,511.47 : x
  2. Step 2: Convert to fraction form
    99,363.97/137,063.77 = 62,511.47/x
  3. Step 3: Cross multiply
    99,363.97x = 137,063.77 × 62,511.47
  4. Step 4: Simplify right side
    99,363.97x = 8,568,058,167.24
  5. Step 5: Solve for x
    x = 8,568,058,167.24/99,363.97
  6. Step 6: Final answer
    x = 86,229.03

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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.