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Finding the Fourth Proportional to 324,094.80, 485,729.10 and 181,939.80

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Solution

The fourth proportional to 324,094.80, 485,729.10 and 181,939.80 is: 272,677.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,094.80 : 485,729.10 = 181,939.80 : x
  2. Step 2: Convert to fraction form
    324,094.80/485,729.10 = 181,939.80/x
  3. Step 3: Cross multiply
    324,094.80x = 485,729.10 × 181,939.80
  4. Step 4: Simplify right side
    324,094.80x = 88,373,455,308.18
  5. Step 5: Solve for x
    x = 88,373,455,308.18/324,094.80
  6. Step 6: Final answer
    x = 272,677.79

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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.