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Finding the Fourth Proportional to 111,974.68, 154,517.96 and 61,673.68

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Solution

The fourth proportional to 111,974.68, 154,517.96 and 61,673.68 is: 85,105.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,974.68 : 154,517.96 = 61,673.68 : x
  2. Step 2: Convert to fraction form
    111,974.68/154,517.96 = 61,673.68/x
  3. Step 3: Cross multiply
    111,974.68x = 154,517.96 × 61,673.68
  4. Step 4: Simplify right side
    111,974.68x = 9,529,691,219.29
  5. Step 5: Solve for x
    x = 9,529,691,219.29/111,974.68
  6. Step 6: Final answer
    x = 85,105.77

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