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Finding the Fourth Proportional to 165,273.98, 247,866.69 and 71,757.50

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Solution

The fourth proportional to 165,273.98, 247,866.69 and 71,757.50 is: 107,617.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    165,273.98 : 247,866.69 = 71,757.50 : x
  2. Step 2: Convert to fraction form
    165,273.98/247,866.69 = 71,757.50/x
  3. Step 3: Cross multiply
    165,273.98x = 247,866.69 × 71,757.50
  4. Step 4: Simplify right side
    165,273.98x = 17,786,294,007.68
  5. Step 5: Solve for x
    x = 17,786,294,007.68/165,273.98
  6. Step 6: Final answer
    x = 107,617.02

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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.