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Finding the Fourth Proportional to 443,048.73, 664,540.84 and 173,126.31

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Solution

The fourth proportional to 443,048.73, 664,540.84 and 173,126.31 is: 259,676.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    443,048.73 : 664,540.84 = 173,126.31 : x
  2. Step 2: Convert to fraction form
    443,048.73/664,540.84 = 173,126.31/x
  3. Step 3: Cross multiply
    443,048.73x = 664,540.84 × 173,126.31
  4. Step 4: Simplify right side
    443,048.73x = 115,049,503,473.50
  5. Step 5: Solve for x
    x = 115,049,503,473.50/443,048.73
  6. Step 6: Final answer
    x = 259,676.86

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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.