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Finding the Fourth Proportional to 68,040.88, 102,021.12 and 25,924.24

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Solution

The fourth proportional to 68,040.88, 102,021.12 and 25,924.24 is: 38,871.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,040.88 : 102,021.12 = 25,924.24 : x
  2. Step 2: Convert to fraction form
    68,040.88/102,021.12 = 25,924.24/x
  3. Step 3: Cross multiply
    68,040.88x = 102,021.12 × 25,924.24
  4. Step 4: Simplify right side
    68,040.88x = 2,644,819,999.95
  5. Step 5: Solve for x
    x = 2,644,819,999.95/68,040.88
  6. Step 6: Final answer
    x = 38,871.04

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.