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Finding the Fourth Proportional to 68,520.62, 94,563.16 and 38,305.39

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Solution

The fourth proportional to 68,520.62, 94,563.16 and 38,305.39 is: 52,864.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,520.62 : 94,563.16 = 38,305.39 : x
  2. Step 2: Convert to fraction form
    68,520.62/94,563.16 = 38,305.39/x
  3. Step 3: Cross multiply
    68,520.62x = 94,563.16 × 38,305.39
  4. Step 4: Simplify right side
    68,520.62x = 3,622,278,723.43
  5. Step 5: Solve for x
    x = 3,622,278,723.43/68,520.62
  6. Step 6: Final answer
    x = 52,864.07

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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.