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Finding the Fourth Proportional to 68,713.78, 94,828.44 and 41,851.98

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Solution

The fourth proportional to 68,713.78, 94,828.44 and 41,851.98 is: 57,757.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,713.78 : 94,828.44 = 41,851.98 : x
  2. Step 2: Convert to fraction form
    68,713.78/94,828.44 = 41,851.98/x
  3. Step 3: Cross multiply
    68,713.78x = 94,828.44 × 41,851.98
  4. Step 4: Simplify right side
    68,713.78x = 3,968,757,974.31
  5. Step 5: Solve for x
    x = 3,968,757,974.31/68,713.78
  6. Step 6: Final answer
    x = 57,757.82

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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.