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Finding the Fourth Proportional to 110,920.80, 166,397.40 and 36,028.20

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Solution

The fourth proportional to 110,920.80, 166,397.40 and 36,028.20 is: 54,047.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    110,920.80 : 166,397.40 = 36,028.20 : x
  2. Step 2: Convert to fraction form
    110,920.80/166,397.40 = 36,028.20/x
  3. Step 3: Cross multiply
    110,920.80x = 166,397.40 × 36,028.20
  4. Step 4: Simplify right side
    110,920.80x = 5,994,998,806.68
  5. Step 5: Solve for x
    x = 5,994,998,806.68/110,920.80
  6. Step 6: Final answer
    x = 54,047.56

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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.