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Finding the Fourth Proportional to 135,443.20, 202,819.20 and 107,795.20

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Solution

The fourth proportional to 135,443.20, 202,819.20 and 107,795.20 is: 161,417.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    135,443.20 : 202,819.20 = 107,795.20 : x
  2. Step 2: Convert to fraction form
    135,443.20/202,819.20 = 107,795.20/x
  3. Step 3: Cross multiply
    135,443.20x = 202,819.20 × 107,795.20
  4. Step 4: Simplify right side
    135,443.20x = 21,862,936,227.84
  5. Step 5: Solve for x
    x = 21,862,936,227.84/135,443.20
  6. Step 6: Final answer
    x = 161,417.75

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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.