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Finding the Fourth Proportional to 120,794.60, 166,698.18 and 67,083.08

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Solution

The fourth proportional to 120,794.60, 166,698.18 and 67,083.08 is: 92,575.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,794.60 : 166,698.18 = 67,083.08 : x
  2. Step 2: Convert to fraction form
    120,794.60/166,698.18 = 67,083.08/x
  3. Step 3: Cross multiply
    120,794.60x = 166,698.18 × 67,083.08
  4. Step 4: Simplify right side
    120,794.60x = 11,182,627,344.79
  5. Step 5: Solve for x
    x = 11,182,627,344.79/120,794.60
  6. Step 6: Final answer
    x = 92,575.56

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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.