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Finding the Fourth Proportional to 132,753.88, 199,030.56 and 80,150.80

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Solution

The fourth proportional to 132,753.88, 199,030.56 and 80,150.80 is: 120,165.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    132,753.88 : 199,030.56 = 80,150.80 : x
  2. Step 2: Convert to fraction form
    132,753.88/199,030.56 = 80,150.80/x
  3. Step 3: Cross multiply
    132,753.88x = 199,030.56 × 80,150.80
  4. Step 4: Simplify right side
    132,753.88x = 15,952,458,608.45
  5. Step 5: Solve for x
    x = 15,952,458,608.45/132,753.88
  6. Step 6: Final answer
    x = 120,165.67

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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.