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Finding the Fourth Proportional to 273,899.40, 410,849.10 and 124,139.40

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Solution

The fourth proportional to 273,899.40, 410,849.10 and 124,139.40 is: 186,209.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    273,899.40 : 410,849.10 = 124,139.40 : x
  2. Step 2: Convert to fraction form
    273,899.40/410,849.10 = 124,139.40/x
  3. Step 3: Cross multiply
    273,899.40x = 410,849.10 × 124,139.40
  4. Step 4: Simplify right side
    273,899.40x = 51,002,560,764.54
  5. Step 5: Solve for x
    x = 51,002,560,764.54/273,899.40
  6. Step 6: Final answer
    x = 186,209.10

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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.