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Finding the Fourth Proportional to 241,115.15, 361,672.71 and 81,177.71

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Solution

The fourth proportional to 241,115.15, 361,672.71 and 81,177.71 is: 121,766.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    241,115.15 : 361,672.71 = 81,177.71 : x
  2. Step 2: Convert to fraction form
    241,115.15/361,672.71 = 81,177.71/x
  3. Step 3: Cross multiply
    241,115.15x = 361,672.71 × 81,177.71
  4. Step 4: Simplify right side
    241,115.15x = 29,359,760,558.93
  5. Step 5: Solve for x
    x = 29,359,760,558.93/241,115.15
  6. Step 6: Final answer
    x = 121,766.55

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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.