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Finding the Fourth Proportional to 274,279.43, 411,271.21 and 124,437.96

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Solution

The fourth proportional to 274,279.43, 411,271.21 and 124,437.96 is: 186,589.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    274,279.43 : 411,271.21 = 124,437.96 : x
  2. Step 2: Convert to fraction form
    274,279.43/411,271.21 = 124,437.96/x
  3. Step 3: Cross multiply
    274,279.43x = 411,271.21 × 124,437.96
  4. Step 4: Simplify right side
    274,279.43x = 51,177,750,534.68
  5. Step 5: Solve for x
    x = 51,177,750,534.68/274,279.43
  6. Step 6: Final answer
    x = 186,589.82

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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.