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Finding the Fourth Proportional to 74,449.62, 102,845.07 and 67,723.38

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Solution

The fourth proportional to 74,449.62, 102,845.07 and 67,723.38 is: 93,553.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,449.62 : 102,845.07 = 67,723.38 : x
  2. Step 2: Convert to fraction form
    74,449.62/102,845.07 = 67,723.38/x
  3. Step 3: Cross multiply
    74,449.62x = 102,845.07 × 67,723.38
  4. Step 4: Simplify right side
    74,449.62x = 6,965,015,756.74
  5. Step 5: Solve for x
    x = 6,965,015,756.74/74,449.62
  6. Step 6: Final answer
    x = 93,553.41

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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.