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Finding the Fourth Proportional to 156,768.31, 234,991.41 and 61,959.97

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Solution

The fourth proportional to 156,768.31, 234,991.41 and 61,959.97 is: 92,876.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    156,768.31 : 234,991.41 = 61,959.97 : x
  2. Step 2: Convert to fraction form
    156,768.31/234,991.41 = 61,959.97/x
  3. Step 3: Cross multiply
    156,768.31x = 234,991.41 × 61,959.97
  4. Step 4: Simplify right side
    156,768.31x = 14,560,060,713.86
  5. Step 5: Solve for x
    x = 14,560,060,713.86/156,768.31
  6. Step 6: Final answer
    x = 92,876.30

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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.