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Finding the Fourth Proportional to 111,974.73, 154,525.11 and 61,673.73

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Solution

The fourth proportional to 111,974.73, 154,525.11 and 61,673.73 is: 85,109.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,974.73 : 154,525.11 = 61,673.73 : x
  2. Step 2: Convert to fraction form
    111,974.73/154,525.11 = 61,673.73/x
  3. Step 3: Cross multiply
    111,974.73x = 154,525.11 × 61,673.73
  4. Step 4: Simplify right side
    111,974.73x = 9,530,139,912.36
  5. Step 5: Solve for x
    x = 9,530,139,912.36/111,974.73
  6. Step 6: Final answer
    x = 85,109.74

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.