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Finding the Fourth Proportional to 186,092.75, 278,916.78 and 67,625.39

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Solution

The fourth proportional to 186,092.75, 278,916.78 and 67,625.39 is: 101,357.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,092.75 : 278,916.78 = 67,625.39 : x
  2. Step 2: Convert to fraction form
    186,092.75/278,916.78 = 67,625.39/x
  3. Step 3: Cross multiply
    186,092.75x = 278,916.78 × 67,625.39
  4. Step 4: Simplify right side
    186,092.75x = 18,861,856,025.04
  5. Step 5: Solve for x
    x = 18,861,856,025.04/186,092.75
  6. Step 6: Final answer
    x = 101,357.29

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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.