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Finding the Fourth Proportional to 274,164.20, 411,246.30 and 87,194.60

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Solution

The fourth proportional to 274,164.20, 411,246.30 and 87,194.60 is: 130,791.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,164.20 : 411,246.30 = 87,194.60 : x
  2. Step 2: Convert to fraction form
    274,164.20/411,246.30 = 87,194.60/x
  3. Step 3: Cross multiply
    274,164.20x = 411,246.30 × 87,194.60
  4. Step 4: Simplify right side
    274,164.20x = 35,858,456,629.98
  5. Step 5: Solve for x
    x = 35,858,456,629.98/274,164.20
  6. Step 6: Final answer
    x = 130,791.90

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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.