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Finding the Fourth Proportional to 68,893.43, 95,072.10 and 38,678.00

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Solution

The fourth proportional to 68,893.43, 95,072.10 and 38,678.00 is: 53,375.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,893.43 : 95,072.10 = 38,678.00 : x
  2. Step 2: Convert to fraction form
    68,893.43/95,072.10 = 38,678.00/x
  3. Step 3: Cross multiply
    68,893.43x = 95,072.10 × 38,678.00
  4. Step 4: Simplify right side
    68,893.43x = 3,677,198,208.44
  5. Step 5: Solve for x
    x = 3,677,198,208.44/68,893.43
  6. Step 6: Final answer
    x = 53,375.17

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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.