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Finding the Fourth Proportional to 166,963.92, 230,415.60 and 91,519.44

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Solution

The fourth proportional to 166,963.92, 230,415.60 and 91,519.44 is: 126,299.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    166,963.92 : 230,415.60 = 91,519.44 : x
  2. Step 2: Convert to fraction form
    166,963.92/230,415.60 = 91,519.44/x
  3. Step 3: Cross multiply
    166,963.92x = 230,415.60 × 91,519.44
  4. Step 4: Simplify right side
    166,963.92x = 21,087,506,679.26
  5. Step 5: Solve for x
    x = 21,087,506,679.26/166,963.92
  6. Step 6: Final answer
    x = 126,299.78

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1.5x scale

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.