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Finding the Fourth Proportional to 275,847.89, 380,919.07 and 174,053.97

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Solution

The fourth proportional to 275,847.89, 380,919.07 and 174,053.97 is: 240,351.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,847.89 : 380,919.07 = 174,053.97 : x
  2. Step 2: Convert to fraction form
    275,847.89/380,919.07 = 174,053.97/x
  3. Step 3: Cross multiply
    275,847.89x = 380,919.07 × 174,053.97
  4. Step 4: Simplify right side
    275,847.89x = 66,300,476,599.78
  5. Step 5: Solve for x
    x = 66,300,476,599.78/275,847.89
  6. Step 6: Final answer
    x = 240,351.59

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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.