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Finding the Fourth Proportional to 247,755.46, 341,908.86 and 140,323.90

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Solution

The fourth proportional to 247,755.46, 341,908.86 and 140,323.90 is: 193,650.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,755.46 : 341,908.86 = 140,323.90 : x
  2. Step 2: Convert to fraction form
    247,755.46/341,908.86 = 140,323.90/x
  3. Step 3: Cross multiply
    247,755.46x = 341,908.86 × 140,323.90
  4. Step 4: Simplify right side
    247,755.46x = 47,977,984,679.75
  5. Step 5: Solve for x
    x = 47,977,984,679.75/247,755.46
  6. Step 6: Final answer
    x = 193,650.56

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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.