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Finding the Fourth Proportional to 203,853.00, 305,795.45 and 54,089.98

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Solution

The fourth proportional to 203,853.00, 305,795.45 and 54,089.98 is: 81,139.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,853.00 : 305,795.45 = 54,089.98 : x
  2. Step 2: Convert to fraction form
    203,853.00/305,795.45 = 54,089.98/x
  3. Step 3: Cross multiply
    203,853.00x = 305,795.45 × 54,089.98
  4. Step 4: Simplify right side
    203,853.00x = 16,540,469,145.33
  5. Step 5: Solve for x
    x = 16,540,469,145.33/203,853.00
  6. Step 6: Final answer
    x = 81,139.20

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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.