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Finding the Fourth Proportional to 275,081.10, 412,864.65 and 162,620.70

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Solution

The fourth proportional to 275,081.10, 412,864.65 and 162,620.70 is: 244,074.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,081.10 : 412,864.65 = 162,620.70 : x
  2. Step 2: Convert to fraction form
    275,081.10/412,864.65 = 162,620.70/x
  3. Step 3: Cross multiply
    275,081.10x = 412,864.65 × 162,620.70
  4. Step 4: Simplify right side
    275,081.10x = 67,140,338,388.26
  5. Step 5: Solve for x
    x = 67,140,338,388.26/275,081.10
  6. Step 6: Final answer
    x = 244,074.71

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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.