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Finding the Fourth Proportional to 391,735.14, 587,644.83 and 167,119.31

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Solution

The fourth proportional to 391,735.14, 587,644.83 and 167,119.31 is: 250,696.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    391,735.14 : 587,644.83 = 167,119.31 : x
  2. Step 2: Convert to fraction form
    391,735.14/587,644.83 = 167,119.31/x
  3. Step 3: Cross multiply
    391,735.14x = 587,644.83 × 167,119.31
  4. Step 4: Simplify right side
    391,735.14x = 98,206,795,576.44
  5. Step 5: Solve for x
    x = 98,206,795,576.44/391,735.14
  6. Step 6: Final answer
    x = 250,696.93

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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.