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Finding the Fourth Proportional to 60,979.62, 91,469.43 and 40,198.26

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Solution

The fourth proportional to 60,979.62, 91,469.43 and 40,198.26 is: 60,297.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,979.62 : 91,469.43 = 40,198.26 : x
  2. Step 2: Convert to fraction form
    60,979.62/91,469.43 = 40,198.26/x
  3. Step 3: Cross multiply
    60,979.62x = 91,469.43 × 40,198.26
  4. Step 4: Simplify right side
    60,979.62x = 3,676,911,929.19
  5. Step 5: Solve for x
    x = 3,676,911,929.19/60,979.62
  6. Step 6: Final answer
    x = 60,297.39

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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.