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Finding the Fourth Proportional to 667,396.84, 1,001,086.90 and 161,962

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Solution

The fourth proportional to 667,396.84, 1,001,086.90 and 161,962 is: 242,940.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    667,396.84 : 1,001,086.90 = 161,962 : x
  2. Step 2: Convert to fraction form
    667,396.84/1,001,086.90 = 161,962/x
  3. Step 3: Cross multiply
    667,396.84x = 1,001,086.90 × 161,962
  4. Step 4: Simplify right side
    667,396.84x = 162,138,036,497.80
  5. Step 5: Solve for x
    x = 162,138,036,497.80/667,396.84
  6. Step 6: Final answer
    x = 242,940.97

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.