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Finding the Fourth Proportional to 265,793.67, 398,353.95 and 115,993.89

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Solution

The fourth proportional to 265,793.67, 398,353.95 and 115,993.89 is: 173,843.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    265,793.67 : 398,353.95 = 115,993.89 : x
  2. Step 2: Convert to fraction form
    265,793.67/398,353.95 = 115,993.89/x
  3. Step 3: Cross multiply
    265,793.67x = 398,353.95 × 115,993.89
  4. Step 4: Simplify right side
    265,793.67x = 46,206,624,257.37
  5. Step 5: Solve for x
    x = 46,206,624,257.37/265,793.67
  6. Step 6: Final answer
    x = 173,843.96

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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.