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Finding the Fourth Proportional to 293,413.20, 440,033.40 and 115,861.20

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Solution

The fourth proportional to 293,413.20, 440,033.40 and 115,861.20 is: 173,757.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    293,413.20 : 440,033.40 = 115,861.20 : x
  2. Step 2: Convert to fraction form
    293,413.20/440,033.40 = 115,861.20/x
  3. Step 3: Cross multiply
    293,413.20x = 440,033.40 × 115,861.20
  4. Step 4: Simplify right side
    293,413.20x = 50,982,797,764.08
  5. Step 5: Solve for x
    x = 50,982,797,764.08/293,413.20
  6. Step 6: Final answer
    x = 173,757.68

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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.