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Finding the Fourth Proportional to 361,016.68, 541,608.09 and 121,162.42

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Solution

The fourth proportional to 361,016.68, 541,608.09 and 121,162.42 is: 181,771.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    361,016.68 : 541,608.09 = 121,162.42 : x
  2. Step 2: Convert to fraction form
    361,016.68/541,608.09 = 121,162.42/x
  3. Step 3: Cross multiply
    361,016.68x = 541,608.09 × 121,162.42
  4. Step 4: Simplify right side
    361,016.68x = 65,622,546,875.98
  5. Step 5: Solve for x
    x = 65,622,546,875.98/361,016.68
  6. Step 6: Final answer
    x = 181,771.51

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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.