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Finding the Fourth Proportional to 445,059, 667,672.20 and 178,840.62

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Solution

The fourth proportional to 445,059, 667,672.20 and 178,840.62 is: 268,294.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,059 : 667,672.20 = 178,840.62 : x
  2. Step 2: Convert to fraction form
    445,059/667,672.20 = 178,840.62/x
  3. Step 3: Cross multiply
    445,059x = 667,672.20 × 178,840.62
  4. Step 4: Simplify right side
    445,059x = 119,406,910,204.76
  5. Step 5: Solve for x
    x = 119,406,910,204.76/445,059
  6. Step 6: Final answer
    x = 268,294.56

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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.