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Finding the Fourth Proportional to 68,617.44, 94,694.64 and 38,402.64

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Solution

The fourth proportional to 68,617.44, 94,694.64 and 38,402.64 is: 52,997.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,617.44 : 94,694.64 = 38,402.64 : x
  2. Step 2: Convert to fraction form
    68,617.44/94,694.64 = 38,402.64/x
  3. Step 3: Cross multiply
    68,617.44x = 94,694.64 × 38,402.64
  4. Step 4: Simplify right side
    68,617.44x = 3,636,524,169.85
  5. Step 5: Solve for x
    x = 3,636,524,169.85/68,617.44
  6. Step 6: Final answer
    x = 52,997.08

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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.