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Finding the Fourth Proportional to 79,204.66, 118,992.78 and 74,721.22

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Solution

The fourth proportional to 79,204.66, 118,992.78 and 74,721.22 is: 112,257.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,204.66 : 118,992.78 = 74,721.22 : x
  2. Step 2: Convert to fraction form
    79,204.66/118,992.78 = 74,721.22/x
  3. Step 3: Cross multiply
    79,204.66x = 118,992.78 × 74,721.22
  4. Step 4: Simplify right side
    79,204.66x = 8,891,285,692.79
  5. Step 5: Solve for x
    x = 8,891,285,692.79/79,204.66
  6. Step 6: Final answer
    x = 112,257.10

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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.