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Finding the Fourth Proportional to 186,942.62, 280,404.60 and 68,604.66

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Solution

The fourth proportional to 186,942.62, 280,404.60 and 68,604.66 is: 102,903.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,942.62 : 280,404.60 = 68,604.66 : x
  2. Step 2: Convert to fraction form
    186,942.62/280,404.60 = 68,604.66/x
  3. Step 3: Cross multiply
    186,942.62x = 280,404.60 × 68,604.66
  4. Step 4: Simplify right side
    186,942.62x = 19,237,062,245.44
  5. Step 5: Solve for x
    x = 19,237,062,245.44/186,942.62
  6. Step 6: Final answer
    x = 102,903.57

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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.