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Finding the Fourth Proportional to 103,234.98, 154,747.92 and 69,958.44

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Solution

The fourth proportional to 103,234.98, 154,747.92 and 69,958.44 is: 104,866.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,234.98 : 154,747.92 = 69,958.44 : x
  2. Step 2: Convert to fraction form
    103,234.98/154,747.92 = 69,958.44/x
  3. Step 3: Cross multiply
    103,234.98x = 154,747.92 × 69,958.44
  4. Step 4: Simplify right side
    103,234.98x = 10,825,923,076.44
  5. Step 5: Solve for x
    x = 10,825,923,076.44/103,234.98
  6. Step 6: Final answer
    x = 104,866.81

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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.