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Finding the Fourth Proportional to 178,851.78, 268,110.90 and 60,440.31

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Solution

The fourth proportional to 178,851.78, 268,110.90 and 60,440.31 is: 90,604.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    178,851.78 : 268,110.90 = 60,440.31 : x
  2. Step 2: Convert to fraction form
    178,851.78/268,110.90 = 60,440.31/x
  3. Step 3: Cross multiply
    178,851.78x = 268,110.90 × 60,440.31
  4. Step 4: Simplify right side
    178,851.78x = 16,204,705,910.38
  5. Step 5: Solve for x
    x = 16,204,705,910.38/178,851.78
  6. Step 6: Final answer
    x = 90,604.11

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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.