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Finding the Fourth Proportional to 273,803.09, 410,743.56 and 84,279.26

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Solution

The fourth proportional to 273,803.09, 410,743.56 and 84,279.26 is: 126,430.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,803.09 : 410,743.56 = 84,279.26 : x
  2. Step 2: Convert to fraction form
    273,803.09/410,743.56 = 84,279.26/x
  3. Step 3: Cross multiply
    273,803.09x = 410,743.56 × 84,279.26
  4. Step 4: Simplify right side
    273,803.09x = 34,617,163,286.57
  5. Step 5: Solve for x
    x = 34,617,163,286.57/273,803.09
  6. Step 6: Final answer
    x = 126,430.87

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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.