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Finding the Fourth Proportional to 132,685.20, 199,027.80 and 43,941.60

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Solution

The fourth proportional to 132,685.20, 199,027.80 and 43,941.60 is: 65,912.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,685.20 : 199,027.80 = 43,941.60 : x
  2. Step 2: Convert to fraction form
    132,685.20/199,027.80 = 43,941.60/x
  3. Step 3: Cross multiply
    132,685.20x = 199,027.80 × 43,941.60
  4. Step 4: Simplify right side
    132,685.20x = 8,745,599,976.48
  5. Step 5: Solve for x
    x = 8,745,599,976.48/132,685.20
  6. Step 6: Final answer
    x = 65,912.40

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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.