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Finding the Fourth Proportional to 49,850.69, 74,811.11 and 45,086.38

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Solution

The fourth proportional to 49,850.69, 74,811.11 and 45,086.38 is: 67,661.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,850.69 : 74,811.11 = 45,086.38 : x
  2. Step 2: Convert to fraction form
    49,850.69/74,811.11 = 45,086.38/x
  3. Step 3: Cross multiply
    49,850.69x = 74,811.11 × 45,086.38
  4. Step 4: Simplify right side
    49,850.69x = 3,372,962,133.68
  5. Step 5: Solve for x
    x = 3,372,962,133.68/49,850.69
  6. Step 6: Final answer
    x = 67,661.29

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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.