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Finding the Fourth Proportional to 67,943.78, 101,955.77 and 25,859.30

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Solution

The fourth proportional to 67,943.78, 101,955.77 and 25,859.30 is: 38,804.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,943.78 : 101,955.77 = 25,859.30 : x
  2. Step 2: Convert to fraction form
    67,943.78/101,955.77 = 25,859.30/x
  3. Step 3: Cross multiply
    67,943.78x = 101,955.77 × 25,859.30
  4. Step 4: Simplify right side
    67,943.78x = 2,636,504,204.09
  5. Step 5: Solve for x
    x = 2,636,504,204.09/67,943.78
  6. Step 6: Final answer
    x = 38,804.21

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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.