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Finding the Fourth Proportional to 8,795,169.20, 13,192,753.80 and 3,115,578.80

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Solution

The fourth proportional to 8,795,169.20, 13,192,753.80 and 3,115,578.80 is: 4,673,368.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,795,169.20 : 13,192,753.80 = 3,115,578.80 : x
  2. Step 2: Convert to fraction form
    8,795,169.20/13,192,753.80 = 3,115,578.80/x
  3. Step 3: Cross multiply
    8,795,169.20x = 13,192,753.80 × 3,115,578.80
  4. Step 4: Simplify right side
    8,795,169.20x = 41,103,064,052,899.44
  5. Step 5: Solve for x
    x = 41,103,064,052,899.44/8,795,169.20
  6. Step 6: Final answer
    x = 4,673,368.20

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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.