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Finding the Fourth Proportional to 324,106.80, 485,747.10 and 181,951.80

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Solution

The fourth proportional to 324,106.80, 485,747.10 and 181,951.80 is: 272,695.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,106.80 : 485,747.10 = 181,951.80 : x
  2. Step 2: Convert to fraction form
    324,106.80/485,747.10 = 181,951.80/x
  3. Step 3: Cross multiply
    324,106.80x = 485,747.10 × 181,951.80
  4. Step 4: Simplify right side
    324,106.80x = 88,382,559,189.78
  5. Step 5: Solve for x
    x = 88,382,559,189.78/324,106.80
  6. Step 6: Final answer
    x = 272,695.79

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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.