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Finding the Fourth Proportional to 68,074.92, 93,949.56 and 37,859.76

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Solution

The fourth proportional to 68,074.92, 93,949.56 and 37,859.76 is: 52,249.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,074.92 : 93,949.56 = 37,859.76 : x
  2. Step 2: Convert to fraction form
    68,074.92/93,949.56 = 37,859.76/x
  3. Step 3: Cross multiply
    68,074.92x = 93,949.56 × 37,859.76
  4. Step 4: Simplify right side
    68,074.92x = 3,556,907,793.71
  5. Step 5: Solve for x
    x = 3,556,907,793.71/68,074.92
  6. Step 6: Final answer
    x = 52,249.90

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.