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Finding the Fourth Proportional to 79,479.68, 109,676.68 and 43,668.92

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Solution

The fourth proportional to 79,479.68, 109,676.68 and 43,668.92 is: 60,260.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,479.68 : 109,676.68 = 43,668.92 : x
  2. Step 2: Convert to fraction form
    79,479.68/109,676.68 = 43,668.92/x
  3. Step 3: Cross multiply
    79,479.68x = 109,676.68 × 43,668.92
  4. Step 4: Simplify right side
    79,479.68x = 4,789,462,575.44
  5. Step 5: Solve for x
    x = 4,789,462,575.44/79,479.68
  6. Step 6: Final answer
    x = 60,260.21

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.