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Finding the Fourth Proportional to 323,760.70, 485,410.65 and 124,003.90

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Solution

The fourth proportional to 323,760.70, 485,410.65 and 124,003.90 is: 185,917.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,760.70 : 485,410.65 = 124,003.90 : x
  2. Step 2: Convert to fraction form
    323,760.70/485,410.65 = 124,003.90/x
  3. Step 3: Cross multiply
    323,760.70x = 485,410.65 × 124,003.90
  4. Step 4: Simplify right side
    323,760.70x = 60,192,813,701.54
  5. Step 5: Solve for x
    x = 60,192,813,701.54/323,760.70
  6. Step 6: Final answer
    x = 185,917.60

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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.