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Finding the Fourth Proportional to 79,467.52, 109,668.32 and 43,659.20

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Solution

The fourth proportional to 79,467.52, 109,668.32 and 43,659.20 is: 60,251.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,467.52 : 109,668.32 = 43,659.20 : x
  2. Step 2: Convert to fraction form
    79,467.52/109,668.32 = 43,659.20/x
  3. Step 3: Cross multiply
    79,467.52x = 109,668.32 × 43,659.20
  4. Step 4: Simplify right side
    79,467.52x = 4,788,031,116.54
  5. Step 5: Solve for x
    x = 4,788,031,116.54/79,467.52
  6. Step 6: Final answer
    x = 60,251.42

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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.