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Finding the Fourth Proportional to 137,755.44, 206,557.83 and 42,960.29

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Solution

The fourth proportional to 137,755.44, 206,557.83 and 42,960.29 is: 64,416.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    137,755.44 : 206,557.83 = 42,960.29 : x
  2. Step 2: Convert to fraction form
    137,755.44/206,557.83 = 42,960.29/x
  3. Step 3: Cross multiply
    137,755.44x = 206,557.83 × 42,960.29
  4. Step 4: Simplify right side
    137,755.44x = 8,873,783,245.78
  5. Step 5: Solve for x
    x = 8,873,783,245.78/137,755.44
  6. Step 6: Final answer
    x = 64,416.94

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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.