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Finding the Fourth Proportional to 298,433.44, 447,601.56 and 120,933.28

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Solution

The fourth proportional to 298,433.44, 447,601.56 and 120,933.28 is: 181,380.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,433.44 : 447,601.56 = 120,933.28 : x
  2. Step 2: Convert to fraction form
    298,433.44/447,601.56 = 120,933.28/x
  3. Step 3: Cross multiply
    298,433.44x = 447,601.56 × 120,933.28
  4. Step 4: Simplify right side
    298,433.44x = 54,129,924,783.92
  5. Step 5: Solve for x
    x = 54,129,924,783.92/298,433.44
  6. Step 6: Final answer
    x = 181,380.23

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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.