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Finding the Fourth Proportional to 90,662.82, 125,074.44 and 60,418.68

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Solution

The fourth proportional to 90,662.82, 125,074.44 and 60,418.68 is: 83,350.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,662.82 : 125,074.44 = 60,418.68 : x
  2. Step 2: Convert to fraction form
    90,662.82/125,074.44 = 60,418.68/x
  3. Step 3: Cross multiply
    90,662.82x = 125,074.44 × 60,418.68
  4. Step 4: Simplify right side
    90,662.82x = 7,556,832,566.54
  5. Step 5: Solve for x
    x = 7,556,832,566.54/90,662.82
  6. Step 6: Final answer
    x = 83,350.95

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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.