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Finding the Fourth Proportional to 311,793.88, 467,545.40 and 161,993.90

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Solution

The fourth proportional to 311,793.88, 467,545.40 and 161,993.90 is: 242,915.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,793.88 : 467,545.40 = 161,993.90 : x
  2. Step 2: Convert to fraction form
    311,793.88/467,545.40 = 161,993.90/x
  3. Step 3: Cross multiply
    311,793.88x = 467,545.40 × 161,993.90
  4. Step 4: Simplify right side
    311,793.88x = 75,739,502,773.06
  5. Step 5: Solve for x
    x = 75,739,502,773.06/311,793.88
  6. Step 6: Final answer
    x = 242,915.30

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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.