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Finding the Fourth Proportional to 110,728.40, 166,092.60 and 110,072.30

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Solution

The fourth proportional to 110,728.40, 166,092.60 and 110,072.30 is: 165,108.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,728.40 : 166,092.60 = 110,072.30 : x
  2. Step 2: Convert to fraction form
    110,728.40/166,092.60 = 110,072.30/x
  3. Step 3: Cross multiply
    110,728.40x = 166,092.60 × 110,072.30
  4. Step 4: Simplify right side
    110,728.40x = 18,282,194,494.98
  5. Step 5: Solve for x
    x = 18,282,194,494.98/110,728.40
  6. Step 6: Final answer
    x = 165,108.45

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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.