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Finding the Fourth Proportional to 204,395.55, 306,593.40 and 91,944.39

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Solution

The fourth proportional to 204,395.55, 306,593.40 and 91,944.39 is: 137,916.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,395.55 : 306,593.40 = 91,944.39 : x
  2. Step 2: Convert to fraction form
    204,395.55/306,593.40 = 91,944.39/x
  3. Step 3: Cross multiply
    204,395.55x = 306,593.40 × 91,944.39
  4. Step 4: Simplify right side
    204,395.55x = 28,189,543,141.03
  5. Step 5: Solve for x
    x = 28,189,543,141.03/204,395.55
  6. Step 6: Final answer
    x = 137,916.62

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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.