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Finding the Fourth Proportional to 300,692.28, 451,003.86 and 79,093.56

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Solution

The fourth proportional to 300,692.28, 451,003.86 and 79,093.56 is: 118,631.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,692.28 : 451,003.86 = 79,093.56 : x
  2. Step 2: Convert to fraction form
    300,692.28/451,003.86 = 79,093.56/x
  3. Step 3: Cross multiply
    300,692.28x = 451,003.86 × 79,093.56
  4. Step 4: Simplify right side
    300,692.28x = 35,671,500,861.14
  5. Step 5: Solve for x
    x = 35,671,500,861.14/300,692.28
  6. Step 6: Final answer
    x = 118,631.25

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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.