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Finding the Fourth Proportional to 68,657.92, 103,025.80 and 37,067.56

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Solution

The fourth proportional to 68,657.92, 103,025.80 and 37,067.56 is: 55,622.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,657.92 : 103,025.80 = 37,067.56 : x
  2. Step 2: Convert to fraction form
    68,657.92/103,025.80 = 37,067.56/x
  3. Step 3: Cross multiply
    68,657.92x = 103,025.80 × 37,067.56
  4. Step 4: Simplify right side
    68,657.92x = 3,818,915,023.05
  5. Step 5: Solve for x
    x = 3,818,915,023.05/68,657.92
  6. Step 6: Final answer
    x = 55,622.35

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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.