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Finding the Fourth Proportional to 73,910.72, 110,999.70 and 68,282.33

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Solution

The fourth proportional to 73,910.72, 110,999.70 and 68,282.33 is: 102,546.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,910.72 : 110,999.70 = 68,282.33 : x
  2. Step 2: Convert to fraction form
    73,910.72/110,999.70 = 68,282.33/x
  3. Step 3: Cross multiply
    73,910.72x = 110,999.70 × 68,282.33
  4. Step 4: Simplify right side
    73,910.72x = 7,579,317,590.30
  5. Step 5: Solve for x
    x = 7,579,317,590.30/73,910.72
  6. Step 6: Final answer
    x = 102,546.94

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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.