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Finding the Fourth Proportional to 204,369.94, 306,604.15 and 64,128.56

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Solution

The fourth proportional to 204,369.94, 306,604.15 and 64,128.56 is: 96,208.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    204,369.94 : 306,604.15 = 64,128.56 : x
  2. Step 2: Convert to fraction form
    204,369.94/306,604.15 = 64,128.56/x
  3. Step 3: Cross multiply
    204,369.94x = 306,604.15 × 64,128.56
  4. Step 4: Simplify right side
    204,369.94x = 19,662,082,629.52
  5. Step 5: Solve for x
    x = 19,662,082,629.52/204,369.94
  6. Step 6: Final answer
    x = 96,208.29

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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.