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Finding the Fourth Proportional to 323,974.88, 485,960.27 and 110,639.87

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Solution

The fourth proportional to 323,974.88, 485,960.27 and 110,639.87 is: 165,959.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,974.88 : 485,960.27 = 110,639.87 : x
  2. Step 2: Convert to fraction form
    323,974.88/485,960.27 = 110,639.87/x
  3. Step 3: Cross multiply
    323,974.88x = 485,960.27 × 110,639.87
  4. Step 4: Simplify right side
    323,974.88x = 53,766,578,944.76
  5. Step 5: Solve for x
    x = 53,766,578,944.76/323,974.88
  6. Step 6: Final answer
    x = 165,959.10

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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.