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Finding the Fourth Proportional to 68,408.59, 94,399.89 and 38,195.83

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Solution

The fourth proportional to 68,408.59, 94,399.89 and 38,195.83 is: 52,708.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,408.59 : 94,399.89 = 38,195.83 : x
  2. Step 2: Convert to fraction form
    68,408.59/94,399.89 = 38,195.83/x
  3. Step 3: Cross multiply
    68,408.59x = 94,399.89 × 38,195.83
  4. Step 4: Simplify right side
    68,408.59x = 3,605,681,858.09
  5. Step 5: Solve for x
    x = 3,605,681,858.09/68,408.59
  6. Step 6: Final answer
    x = 52,708.03

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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.