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Finding the Fourth Proportional to 45,179.44, 67,708.68 and 25,450

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Solution

The fourth proportional to 45,179.44, 67,708.68 and 25,450 is: 38,140.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,179.44 : 67,708.68 = 25,450 : x
  2. Step 2: Convert to fraction form
    45,179.44/67,708.68 = 25,450/x
  3. Step 3: Cross multiply
    45,179.44x = 67,708.68 × 25,450
  4. Step 4: Simplify right side
    45,179.44x = 1,723,185,906.00
  5. Step 5: Solve for x
    x = 1,723,185,906.00/45,179.44
  6. Step 6: Final answer
    x = 38,140.93

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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.