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Finding the Fourth Proportional to 339,329.52, 508,218.84 and 161,961.03

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Solution

The fourth proportional to 339,329.52, 508,218.84 and 161,961.03 is: 242,571.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    339,329.52 : 508,218.84 = 161,961.03 : x
  2. Step 2: Convert to fraction form
    339,329.52/508,218.84 = 161,961.03/x
  3. Step 3: Cross multiply
    339,329.52x = 508,218.84 × 161,961.03
  4. Step 4: Simplify right side
    339,329.52x = 82,311,646,791.81
  5. Step 5: Solve for x
    x = 82,311,646,791.81/339,329.52
  6. Step 6: Final answer
    x = 242,571.43

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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.