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Finding the Fourth Proportional to 138,063.44, 206,791.60 and 114,099.40

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Solution

The fourth proportional to 138,063.44, 206,791.60 and 114,099.40 is: 170,898.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    138,063.44 : 206,791.60 = 114,099.40 : x
  2. Step 2: Convert to fraction form
    138,063.44/206,791.60 = 114,099.40/x
  3. Step 3: Cross multiply
    138,063.44x = 206,791.60 × 114,099.40
  4. Step 4: Simplify right side
    138,063.44x = 23,594,797,485.04
  5. Step 5: Solve for x
    x = 23,594,797,485.04/138,063.44
  6. Step 6: Final answer
    x = 170,898.23

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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.