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Finding the Fourth Proportional to 110,638.40, 166,022.40 and 40,524.80

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Solution

The fourth proportional to 110,638.40, 166,022.40 and 40,524.80 is: 60,810.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,638.40 : 166,022.40 = 40,524.80 : x
  2. Step 2: Convert to fraction form
    110,638.40/166,022.40 = 40,524.80/x
  3. Step 3: Cross multiply
    110,638.40x = 166,022.40 × 40,524.80
  4. Step 4: Simplify right side
    110,638.40x = 6,728,024,555.52
  5. Step 5: Solve for x
    x = 6,728,024,555.52/110,638.40
  6. Step 6: Final answer
    x = 60,810.94

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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.