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Finding the Fourth Proportional to 168,257.70, 252,331.92 and 55,907.75

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Solution

The fourth proportional to 168,257.70, 252,331.92 and 55,907.75 is: 83,843.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    168,257.70 : 252,331.92 = 55,907.75 : x
  2. Step 2: Convert to fraction form
    168,257.70/252,331.92 = 55,907.75/x
  3. Step 3: Cross multiply
    168,257.70x = 252,331.92 × 55,907.75
  4. Step 4: Simplify right side
    168,257.70x = 14,107,308,638.72
  5. Step 5: Solve for x
    x = 14,107,308,638.72/168,257.70
  6. Step 6: Final answer
    x = 83,843.47

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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.