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Finding the Fourth Proportional to 120,961, 166,926.18 and 67,969

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Solution

The fourth proportional to 120,961, 166,926.18 and 67,969 is: 93,797.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    120,961 : 166,926.18 = 67,969 : x
  2. Step 2: Convert to fraction form
    120,961/166,926.18 = 67,969/x
  3. Step 3: Cross multiply
    120,961x = 166,926.18 × 67,969
  4. Step 4: Simplify right side
    120,961x = 11,345,805,528.42
  5. Step 5: Solve for x
    x = 11,345,805,528.42/120,961
  6. Step 6: Final answer
    x = 93,797.22

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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.