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Finding the Fourth Proportional to 204,158.21, 306,299.48 and 104,388.48

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Solution

The fourth proportional to 204,158.21, 306,299.48 and 104,388.48 is: 156,614.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,158.21 : 306,299.48 = 104,388.48 : x
  2. Step 2: Convert to fraction form
    204,158.21/306,299.48 = 104,388.48/x
  3. Step 3: Cross multiply
    204,158.21x = 306,299.48 × 104,388.48
  4. Step 4: Simplify right side
    204,158.21x = 31,974,136,620.05
  5. Step 5: Solve for x
    x = 31,974,136,620.05/204,158.21
  6. Step 6: Final answer
    x = 156,614.51

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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.