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Finding the Fourth Proportional to 69,309.95, 103,976.13 and 27,167.18

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Solution

The fourth proportional to 69,309.95, 103,976.13 and 27,167.18 is: 40,755.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,309.95 : 103,976.13 = 27,167.18 : x
  2. Step 2: Convert to fraction form
    69,309.95/103,976.13 = 27,167.18/x
  3. Step 3: Cross multiply
    69,309.95x = 103,976.13 × 27,167.18
  4. Step 4: Simplify right side
    69,309.95x = 2,824,738,239.41
  5. Step 5: Solve for x
    x = 2,824,738,239.41/69,309.95
  6. Step 6: Final answer
    x = 40,755.16

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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.