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Finding the Fourth Proportional to 220,676.63, 331,142.63 and 92,581.44

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Solution

The fourth proportional to 220,676.63, 331,142.63 and 92,581.44 is: 138,925.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,676.63 : 331,142.63 = 92,581.44 : x
  2. Step 2: Convert to fraction form
    220,676.63/331,142.63 = 92,581.44/x
  3. Step 3: Cross multiply
    220,676.63x = 331,142.63 × 92,581.44
  4. Step 4: Simplify right side
    220,676.63x = 30,657,661,067.88
  5. Step 5: Solve for x
    x = 30,657,661,067.88/220,676.63
  6. Step 6: Final answer
    x = 138,925.73

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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.