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Finding the Fourth Proportional to 226,635.78, 339,916.71 and 66,674.31

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Solution

The fourth proportional to 226,635.78, 339,916.71 and 66,674.31 is: 100,000.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,635.78 : 339,916.71 = 66,674.31 : x
  2. Step 2: Convert to fraction form
    226,635.78/339,916.71 = 66,674.31/x
  3. Step 3: Cross multiply
    226,635.78x = 339,916.71 × 66,674.31
  4. Step 4: Simplify right side
    226,635.78x = 22,663,712,096.72
  5. Step 5: Solve for x
    x = 22,663,712,096.72/226,635.78
  6. Step 6: Final answer
    x = 100,000.59

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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.