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Finding the Fourth Proportional to 444,832.40, 667,183.80 and 129,256.40

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Solution

The fourth proportional to 444,832.40, 667,183.80 and 129,256.40 is: 193,865.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    444,832.40 : 667,183.80 = 129,256.40 : x
  2. Step 2: Convert to fraction form
    444,832.40/667,183.80 = 129,256.40/x
  3. Step 3: Cross multiply
    444,832.40x = 667,183.80 × 129,256.40
  4. Step 4: Simplify right side
    444,832.40x = 86,237,776,126.32
  5. Step 5: Solve for x
    x = 86,237,776,126.32/444,832.40
  6. Step 6: Final answer
    x = 193,865.77

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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.