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Finding the Fourth Proportional to 121,842.83, 182,793.41 and 61,721.39

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Solution

The fourth proportional to 121,842.83, 182,793.41 and 61,721.39 is: 92,596.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    121,842.83 : 182,793.41 = 61,721.39 : x
  2. Step 2: Convert to fraction form
    121,842.83/182,793.41 = 61,721.39/x
  3. Step 3: Cross multiply
    121,842.83x = 182,793.41 × 61,721.39
  4. Step 4: Simplify right side
    121,842.83x = 11,282,263,959.33
  5. Step 5: Solve for x
    x = 11,282,263,959.33/121,842.83
  6. Step 6: Final answer
    x = 92,596.86

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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.