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Finding the Fourth Proportional to 204,395.73, 306,593.69 and 91,944.57

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Solution

The fourth proportional to 204,395.73, 306,593.69 and 91,944.57 is: 137,916.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,395.73 : 306,593.69 = 91,944.57 : x
  2. Step 2: Convert to fraction form
    204,395.73/306,593.69 = 91,944.57/x
  3. Step 3: Cross multiply
    204,395.73x = 306,593.69 × 91,944.57
  4. Step 4: Simplify right side
    204,395.73x = 28,189,624,991.76
  5. Step 5: Solve for x
    x = 28,189,624,991.76/204,395.73
  6. Step 6: Final answer
    x = 137,916.90

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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.