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Finding the Fourth Proportional to 88,120.44, 132,347.40 and 55,072.44

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Solution

The fourth proportional to 88,120.44, 132,347.40 and 55,072.44 is: 82,712.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    88,120.44 : 132,347.40 = 55,072.44 : x
  2. Step 2: Convert to fraction form
    88,120.44/132,347.40 = 55,072.44/x
  3. Step 3: Cross multiply
    88,120.44x = 132,347.40 × 55,072.44
  4. Step 4: Simplify right side
    88,120.44x = 7,288,694,245.66
  5. Step 5: Solve for x
    x = 7,288,694,245.66/88,120.44
  6. Step 6: Final answer
    x = 82,712.87

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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.