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Finding the Fourth Proportional to 149,087.20, 223,753.20 and 147,920.80

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Solution

The fourth proportional to 149,087.20, 223,753.20 and 147,920.80 is: 222,002.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,087.20 : 223,753.20 = 147,920.80 : x
  2. Step 2: Convert to fraction form
    149,087.20/223,753.20 = 147,920.80/x
  3. Step 3: Cross multiply
    149,087.20x = 223,753.20 × 147,920.80
  4. Step 4: Simplify right side
    149,087.20x = 33,097,752,346.56
  5. Step 5: Solve for x
    x = 33,097,752,346.56/149,087.20
  6. Step 6: Final answer
    x = 222,002.64

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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.