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Finding the Fourth Proportional to 247,083.88, 370,694.94 and 80,988.52

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Solution

The fourth proportional to 247,083.88, 370,694.94 and 80,988.52 is: 121,505.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,083.88 : 370,694.94 = 80,988.52 : x
  2. Step 2: Convert to fraction form
    247,083.88/370,694.94 = 80,988.52/x
  3. Step 3: Cross multiply
    247,083.88x = 370,694.94 × 80,988.52
  4. Step 4: Simplify right side
    247,083.88x = 30,022,034,562.09
  5. Step 5: Solve for x
    x = 30,022,034,562.09/247,083.88
  6. Step 6: Final answer
    x = 121,505.44

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.