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Finding the Fourth Proportional to 68,550.98, 94,641.21 and 43,078.91

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Solution

The fourth proportional to 68,550.98, 94,641.21 and 43,078.91 is: 59,474.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,550.98 : 94,641.21 = 43,078.91 : x
  2. Step 2: Convert to fraction form
    68,550.98/94,641.21 = 43,078.91/x
  3. Step 3: Cross multiply
    68,550.98x = 94,641.21 × 43,078.91
  4. Step 4: Simplify right side
    68,550.98x = 4,077,039,694.68
  5. Step 5: Solve for x
    x = 4,077,039,694.68/68,550.98
  6. Step 6: Final answer
    x = 59,474.57

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.