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Finding the Fourth Proportional to 220,540.98, 330,838.81 and 62,781.74

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Solution

The fourth proportional to 220,540.98, 330,838.81 and 62,781.74 is: 94,180.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,540.98 : 330,838.81 = 62,781.74 : x
  2. Step 2: Convert to fraction form
    220,540.98/330,838.81 = 62,781.74/x
  3. Step 3: Cross multiply
    220,540.98x = 330,838.81 × 62,781.74
  4. Step 4: Simplify right side
    220,540.98x = 20,770,634,183.23
  5. Step 5: Solve for x
    x = 20,770,634,183.23/220,540.98
  6. Step 6: Final answer
    x = 94,180.38

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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.