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Finding the Fourth Proportional to 274,039.56, 411,010.80 and 74,375.46

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Solution

The fourth proportional to 274,039.56, 411,010.80 and 74,375.46 is: 111,550.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,039.56 : 411,010.80 = 74,375.46 : x
  2. Step 2: Convert to fraction form
    274,039.56/411,010.80 = 74,375.46/x
  3. Step 3: Cross multiply
    274,039.56x = 411,010.80 × 74,375.46
  4. Step 4: Simplify right side
    274,039.56x = 30,569,117,314.97
  5. Step 5: Solve for x
    x = 30,569,117,314.97/274,039.56
  6. Step 6: Final answer
    x = 111,550.02

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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.