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Finding the Fourth Proportional to 120,750.72, 166,635.84 and 67,044

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Solution

The fourth proportional to 120,750.72, 166,635.84 and 67,044 is: 92,520.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,750.72 : 166,635.84 = 67,044 : x
  2. Step 2: Convert to fraction form
    120,750.72/166,635.84 = 67,044/x
  3. Step 3: Cross multiply
    120,750.72x = 166,635.84 × 67,044
  4. Step 4: Simplify right side
    120,750.72x = 11,171,933,256.96
  5. Step 5: Solve for x
    x = 11,171,933,256.96/120,750.72
  6. Step 6: Final answer
    x = 92,520.63

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