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Finding the Fourth Proportional to 73,722.10, 110,255.10 and 61,912.30

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Solution

The fourth proportional to 73,722.10, 110,255.10 and 61,912.30 is: 92,592.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,722.10 : 110,255.10 = 61,912.30 : x
  2. Step 2: Convert to fraction form
    73,722.10/110,255.10 = 61,912.30/x
  3. Step 3: Cross multiply
    73,722.10x = 110,255.10 × 61,912.30
  4. Step 4: Simplify right side
    73,722.10x = 6,826,146,827.73
  5. Step 5: Solve for x
    x = 6,826,146,827.73/73,722.10
  6. Step 6: Final answer
    x = 92,592.95

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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.