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Finding the Fourth Proportional to 67,420.26, 101,113.98 and 27,939.48

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Solution

The fourth proportional to 67,420.26, 101,113.98 and 27,939.48 is: 41,902.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,420.26 : 101,113.98 = 27,939.48 : x
  2. Step 2: Convert to fraction form
    67,420.26/101,113.98 = 27,939.48/x
  3. Step 3: Cross multiply
    67,420.26x = 101,113.98 × 27,939.48
  4. Step 4: Simplify right side
    67,420.26x = 2,825,072,021.93
  5. Step 5: Solve for x
    x = 2,825,072,021.93/67,420.26
  6. Step 6: Final answer
    x = 41,902.42

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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.