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Finding the Fourth Proportional to 73,969.22, 111,087.48 and 68,035.44

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Solution

The fourth proportional to 73,969.22, 111,087.48 and 68,035.44 is: 102,176.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,969.22 : 111,087.48 = 68,035.44 : x
  2. Step 2: Convert to fraction form
    73,969.22/111,087.48 = 68,035.44/x
  3. Step 3: Cross multiply
    73,969.22x = 111,087.48 × 68,035.44
  4. Step 4: Simplify right side
    73,969.22x = 7,557,885,580.29
  5. Step 5: Solve for x
    x = 7,557,885,580.29/73,969.22
  6. Step 6: Final answer
    x = 102,176.09

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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.