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Finding the Fourth Proportional to 445,169.14, 667,747.76 and 108,208.86

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Solution

The fourth proportional to 445,169.14, 667,747.76 and 108,208.86 is: 162,311.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,169.14 : 667,747.76 = 108,208.86 : x
  2. Step 2: Convert to fraction form
    445,169.14/667,747.76 = 108,208.86/x
  3. Step 3: Cross multiply
    445,169.14x = 667,747.76 × 108,208.86
  4. Step 4: Simplify right side
    445,169.14x = 72,256,223,877.15
  5. Step 5: Solve for x
    x = 72,256,223,877.15/445,169.14
  6. Step 6: Final answer
    x = 162,311.84

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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.