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Finding the Fourth Proportional to 273,744.20, 410,543.40 and 84,204.20

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Solution

The fourth proportional to 273,744.20, 410,543.40 and 84,204.20 is: 126,283.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,744.20 : 410,543.40 = 84,204.20 : x
  2. Step 2: Convert to fraction form
    273,744.20/410,543.40 = 84,204.20/x
  3. Step 3: Cross multiply
    273,744.20x = 410,543.40 × 84,204.20
  4. Step 4: Simplify right side
    273,744.20x = 34,569,478,562.28
  5. Step 5: Solve for x
    x = 34,569,478,562.28/273,744.20
  6. Step 6: Final answer
    x = 126,283.88

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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.