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Finding the Fourth Proportional to 300,626.28, 450,991.44 and 100,965.96

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Solution

The fourth proportional to 300,626.28, 450,991.44 and 100,965.96 is: 151,466.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,626.28 : 450,991.44 = 100,965.96 : x
  2. Step 2: Convert to fraction form
    300,626.28/450,991.44 = 100,965.96/x
  3. Step 3: Cross multiply
    300,626.28x = 450,991.44 × 100,965.96
  4. Step 4: Simplify right side
    300,626.28x = 45,534,783,691.38
  5. Step 5: Solve for x
    x = 45,534,783,691.38/300,626.28
  6. Step 6: Final answer
    x = 151,466.41

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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.