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Finding the Fourth Proportional to 300,793.94, 451,230.90 and 140,848.03

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Solution

The fourth proportional to 300,793.94, 451,230.90 and 140,848.03 is: 211,290.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,793.94 : 451,230.90 = 140,848.03 : x
  2. Step 2: Convert to fraction form
    300,793.94/451,230.90 = 140,848.03/x
  3. Step 3: Cross multiply
    300,793.94x = 451,230.90 × 140,848.03
  4. Step 4: Simplify right side
    300,793.94x = 63,554,982,212.05
  5. Step 5: Solve for x
    x = 63,554,982,212.05/300,793.94
  6. Step 6: Final answer
    x = 211,290.77

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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.