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Finding the Fourth Proportional to 225,520.95, 337,921.59 and 165,270.21

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Solution

The fourth proportional to 225,520.95, 337,921.59 and 165,270.21 is: 247,641.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,520.95 : 337,921.59 = 165,270.21 : x
  2. Step 2: Convert to fraction form
    225,520.95/337,921.59 = 165,270.21/x
  3. Step 3: Cross multiply
    225,520.95x = 337,921.59 × 165,270.21
  4. Step 4: Simplify right side
    225,520.95x = 55,848,372,142.83
  5. Step 5: Solve for x
    x = 55,848,372,142.83/225,520.95
  6. Step 6: Final answer
    x = 247,641.61

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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.