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Finding the Fourth Proportional to 204,003.80, 305,795.10 and 91,737.80

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Solution

The fourth proportional to 204,003.80, 305,795.10 and 91,737.80 is: 137,512.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,003.80 : 305,795.10 = 91,737.80 : x
  2. Step 2: Convert to fraction form
    204,003.80/305,795.10 = 91,737.80/x
  3. Step 3: Cross multiply
    204,003.80x = 305,795.10 × 91,737.80
  4. Step 4: Simplify right side
    204,003.80x = 28,052,969,724.78
  5. Step 5: Solve for x
    x = 28,052,969,724.78/204,003.80
  6. Step 6: Final answer
    x = 137,512.00

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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.