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Finding the Fourth Proportional to 79,271.27, 118,919.20 and 26,676.65

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Solution

The fourth proportional to 79,271.27, 118,919.20 and 26,676.65 is: 40,019.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,271.27 : 118,919.20 = 26,676.65 : x
  2. Step 2: Convert to fraction form
    79,271.27/118,919.20 = 26,676.65/x
  3. Step 3: Cross multiply
    79,271.27x = 118,919.20 × 26,676.65
  4. Step 4: Simplify right side
    79,271.27x = 3,172,365,876.68
  5. Step 5: Solve for x
    x = 3,172,365,876.68/79,271.27
  6. Step 6: Final answer
    x = 40,019.11

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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.