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Finding the Fourth Proportional to 303,667.85, 419,059.17 and 167,710.97

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Solution

The fourth proportional to 303,667.85, 419,059.17 and 167,710.97 is: 231,439.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,667.85 : 419,059.17 = 167,710.97 : x
  2. Step 2: Convert to fraction form
    303,667.85/419,059.17 = 167,710.97/x
  3. Step 3: Cross multiply
    303,667.85x = 419,059.17 × 167,710.97
  4. Step 4: Simplify right side
    303,667.85x = 70,280,820,935.74
  5. Step 5: Solve for x
    x = 70,280,820,935.74/303,667.85
  6. Step 6: Final answer
    x = 231,439.78

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.