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Finding the Fourth Proportional to 79,751.39, 119,645.60 and 27,161.33

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Solution

The fourth proportional to 79,751.39, 119,645.60 and 27,161.33 is: 40,748.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,751.39 : 119,645.60 = 27,161.33 : x
  2. Step 2: Convert to fraction form
    79,751.39/119,645.60 = 27,161.33/x
  3. Step 3: Cross multiply
    79,751.39x = 119,645.60 × 27,161.33
  4. Step 4: Simplify right side
    79,751.39x = 3,249,732,890.61
  5. Step 5: Solve for x
    x = 3,249,732,890.61/79,751.39
  6. Step 6: Final answer
    x = 40,748.29

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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.