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Finding the Fourth Proportional to 323,871.71, 485,793.79 and 110,658.74

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Solution

The fourth proportional to 323,871.71, 485,793.79 and 110,658.74 is: 165,983.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    323,871.71 : 485,793.79 = 110,658.74 : x
  2. Step 2: Convert to fraction form
    323,871.71/485,793.79 = 110,658.74/x
  3. Step 3: Cross multiply
    323,871.71x = 485,793.79 × 110,658.74
  4. Step 4: Simplify right side
    323,871.71x = 53,757,325,995.61
  5. Step 5: Solve for x
    x = 53,757,325,995.61/323,871.71
  6. Step 6: Final answer
    x = 165,983.40

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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.