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Finding the Fourth Proportional to 194,450.80, 291,627.60 and 74,481.70

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Solution

The fourth proportional to 194,450.80, 291,627.60 and 74,481.70 is: 111,703.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,450.80 : 291,627.60 = 74,481.70 : x
  2. Step 2: Convert to fraction form
    194,450.80/291,627.60 = 74,481.70/x
  3. Step 3: Cross multiply
    194,450.80x = 291,627.60 × 74,481.70
  4. Step 4: Simplify right side
    194,450.80x = 21,720,919,414.92
  5. Step 5: Solve for x
    x = 21,720,919,414.92/194,450.80
  6. Step 6: Final answer
    x = 111,703.93

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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.