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Finding the Fourth Proportional to 381,911.52, 571,994.60 and 182,371.66

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Solution

The fourth proportional to 381,911.52, 571,994.60 and 182,371.66 is: 273,140.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,911.52 : 571,994.60 = 182,371.66 : x
  2. Step 2: Convert to fraction form
    381,911.52/571,994.60 = 182,371.66/x
  3. Step 3: Cross multiply
    381,911.52x = 571,994.60 × 182,371.66
  4. Step 4: Simplify right side
    381,911.52x = 104,315,604,713.04
  5. Step 5: Solve for x
    x = 104,315,604,713.04/381,911.52
  6. Step 6: Final answer
    x = 273,140.76

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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.