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Finding the Fourth Proportional to 79,863.97, 119,806.76 and 27,259.33

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Solution

The fourth proportional to 79,863.97, 119,806.76 and 27,259.33 is: 40,892.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,863.97 : 119,806.76 = 27,259.33 : x
  2. Step 2: Convert to fraction form
    79,863.97/119,806.76 = 27,259.33/x
  3. Step 3: Cross multiply
    79,863.97x = 119,806.76 × 27,259.33
  4. Step 4: Simplify right side
    79,863.97x = 3,265,852,007.07
  5. Step 5: Solve for x
    x = 3,265,852,007.07/79,863.97
  6. Step 6: Final answer
    x = 40,892.68

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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.