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Finding the Fourth Proportional to 331,344.40, 497,016.60 and 162,890.73

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Solution

The fourth proportional to 331,344.40, 497,016.60 and 162,890.73 is: 244,336.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,344.40 : 497,016.60 = 162,890.73 : x
  2. Step 2: Convert to fraction form
    331,344.40/497,016.60 = 162,890.73/x
  3. Step 3: Cross multiply
    331,344.40x = 497,016.60 × 162,890.73
  4. Step 4: Simplify right side
    331,344.40x = 80,959,396,796.12
  5. Step 5: Solve for x
    x = 80,959,396,796.12/331,344.40
  6. Step 6: Final answer
    x = 244,336.10

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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.