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Finding the Fourth Proportional to 132,998.56, 199,571.28 and 54,168.28

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Solution

The fourth proportional to 132,998.56, 199,571.28 and 54,168.28 is: 81,282.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,998.56 : 199,571.28 = 54,168.28 : x
  2. Step 2: Convert to fraction form
    132,998.56/199,571.28 = 54,168.28/x
  3. Step 3: Cross multiply
    132,998.56x = 199,571.28 × 54,168.28
  4. Step 4: Simplify right side
    132,998.56x = 10,810,432,975.00
  5. Step 5: Solve for x
    x = 10,810,432,975.00/132,998.56
  6. Step 6: Final answer
    x = 81,282.33

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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.