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Finding the Fourth Proportional to 492,833.73, 739,137.60 and 137,883.63

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Solution

The fourth proportional to 492,833.73, 739,137.60 and 137,883.63 is: 206,793.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    492,833.73 : 739,137.60 = 137,883.63 : x
  2. Step 2: Convert to fraction form
    492,833.73/739,137.60 = 137,883.63/x
  3. Step 3: Cross multiply
    492,833.73x = 739,137.60 × 137,883.63
  4. Step 4: Simplify right side
    492,833.73x = 101,914,975,357.49
  5. Step 5: Solve for x
    x = 101,914,975,357.49/492,833.73
  6. Step 6: Final answer
    x = 206,793.83

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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.