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Finding the Fourth Proportional to 80,190.44, 120,285.12 and 62,675

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Solution

The fourth proportional to 80,190.44, 120,285.12 and 62,675 is: 94,012.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,190.44 : 120,285.12 = 62,675 : x
  2. Step 2: Convert to fraction form
    80,190.44/120,285.12 = 62,675/x
  3. Step 3: Cross multiply
    80,190.44x = 120,285.12 × 62,675
  4. Step 4: Simplify right side
    80,190.44x = 7,538,869,896
  5. Step 5: Solve for x
    x = 7,538,869,896/80,190.44
  6. Step 6: Final answer
    x = 94,012.08

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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.