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Finding the Fourth Proportional to 120,794.58, 166,853.39 and 91,938.94

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Solution

The fourth proportional to 120,794.58, 166,853.39 and 91,938.94 is: 126,995.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,794.58 : 166,853.39 = 91,938.94 : x
  2. Step 2: Convert to fraction form
    120,794.58/166,853.39 = 91,938.94/x
  3. Step 3: Cross multiply
    120,794.58x = 166,853.39 × 91,938.94
  4. Step 4: Simplify right side
    120,794.58x = 15,340,322,935.18
  5. Step 5: Solve for x
    x = 15,340,322,935.18/120,794.58
  6. Step 6: Final answer
    x = 126,995.13

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.