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Finding the Fourth Proportional to 120,884.94, 166,813.56 and 67,166.82

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Solution

The fourth proportional to 120,884.94, 166,813.56 and 67,166.82 is: 92,685.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,884.94 : 166,813.56 = 67,166.82 : x
  2. Step 2: Convert to fraction form
    120,884.94/166,813.56 = 67,166.82/x
  3. Step 3: Cross multiply
    120,884.94x = 166,813.56 × 67,166.82
  4. Step 4: Simplify right side
    120,884.94x = 11,204,336,358.08
  5. Step 5: Solve for x
    x = 11,204,336,358.08/120,884.94
  6. Step 6: Final answer
    x = 92,685.96

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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.