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Finding the Fourth Proportional to 137,912.81, 206,869.23 and 44,418.56

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Solution

The fourth proportional to 137,912.81, 206,869.23 and 44,418.56 is: 66,627.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,912.81 : 206,869.23 = 44,418.56 : x
  2. Step 2: Convert to fraction form
    137,912.81/206,869.23 = 44,418.56/x
  3. Step 3: Cross multiply
    137,912.81x = 206,869.23 × 44,418.56
  4. Step 4: Simplify right side
    137,912.81x = 9,188,833,304.91
  5. Step 5: Solve for x
    x = 9,188,833,304.91/137,912.81
  6. Step 6: Final answer
    x = 66,627.84

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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.