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Finding the Fourth Proportional to 110,965.20, 166,472.10 and 36,072.60

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Solution

The fourth proportional to 110,965.20, 166,472.10 and 36,072.60 is: 54,116.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,965.20 : 166,472.10 = 36,072.60 : x
  2. Step 2: Convert to fraction form
    110,965.20/166,472.10 = 36,072.60/x
  3. Step 3: Cross multiply
    110,965.20x = 166,472.10 × 36,072.60
  4. Step 4: Simplify right side
    110,965.20x = 6,005,081,474.46
  5. Step 5: Solve for x
    x = 6,005,081,474.46/110,965.20
  6. Step 6: Final answer
    x = 54,116.80

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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.