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Finding the Fourth Proportional to 178,553.19, 267,845.51 and 66,234.63

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Solution

The fourth proportional to 178,553.19, 267,845.51 and 66,234.63 is: 99,357.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,553.19 : 267,845.51 = 66,234.63 : x
  2. Step 2: Convert to fraction form
    178,553.19/267,845.51 = 66,234.63/x
  3. Step 3: Cross multiply
    178,553.19x = 267,845.51 × 66,234.63
  4. Step 4: Simplify right side
    178,553.19x = 17,740,647,920.84
  5. Step 5: Solve for x
    x = 17,740,647,920.84/178,553.19
  6. Step 6: Final answer
    x = 99,357.78

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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.