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Finding the Fourth Proportional to 68,992.56, 103,499.78 and 22,234.50

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Solution

The fourth proportional to 68,992.56, 103,499.78 and 22,234.50 is: 33,355.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,992.56 : 103,499.78 = 22,234.50 : x
  2. Step 2: Convert to fraction form
    68,992.56/103,499.78 = 22,234.50/x
  3. Step 3: Cross multiply
    68,992.56x = 103,499.78 × 22,234.50
  4. Step 4: Simplify right side
    68,992.56x = 2,301,265,747.24
  5. Step 5: Solve for x
    x = 2,301,265,747.24/68,992.56
  6. Step 6: Final answer
    x = 33,355.27

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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.