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Finding the Fourth Proportional to 203,391, 305,086.50 and 63,149.63

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Solution

The fourth proportional to 203,391, 305,086.50 and 63,149.63 is: 94,724.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,391 : 305,086.50 = 63,149.63 : x
  2. Step 2: Convert to fraction form
    203,391/305,086.50 = 63,149.63/x
  3. Step 3: Cross multiply
    203,391x = 305,086.50 × 63,149.63
  4. Step 4: Simplify right side
    203,391x = 19,266,098,067.56
  5. Step 5: Solve for x
    x = 19,266,098,067.56/203,391
  6. Step 6: Final answer
    x = 94,724.44

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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.