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Finding the Fourth Proportional to 110,900.40, 166,091.40 and 108,673.20

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Solution

The fourth proportional to 110,900.40, 166,091.40 and 108,673.20 is: 162,755.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,900.40 : 166,091.40 = 108,673.20 : x
  2. Step 2: Convert to fraction form
    110,900.40/166,091.40 = 108,673.20/x
  3. Step 3: Cross multiply
    110,900.40x = 166,091.40 × 108,673.20
  4. Step 4: Simplify right side
    110,900.40x = 18,049,683,930.48
  5. Step 5: Solve for x
    x = 18,049,683,930.48/110,900.40
  6. Step 6: Final answer
    x = 162,755.81

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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.