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Finding the Fourth Proportional to 203,809.98, 305,610.90 and 119,734.38

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Solution

The fourth proportional to 203,809.98, 305,610.90 and 119,734.38 is: 179,540.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,809.98 : 305,610.90 = 119,734.38 : x
  2. Step 2: Convert to fraction form
    203,809.98/305,610.90 = 119,734.38/x
  3. Step 3: Cross multiply
    203,809.98x = 305,610.90 × 119,734.38
  4. Step 4: Simplify right side
    203,809.98x = 36,592,131,632.74
  5. Step 5: Solve for x
    x = 36,592,131,632.74/203,809.98
  6. Step 6: Final answer
    x = 179,540.43

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1.5x scale

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.