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Finding the Fourth Proportional to 183,793.20, 275,689.80 and 90,481.20

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Solution

The fourth proportional to 183,793.20, 275,689.80 and 90,481.20 is: 135,721.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    183,793.20 : 275,689.80 = 90,481.20 : x
  2. Step 2: Convert to fraction form
    183,793.20/275,689.80 = 90,481.20/x
  3. Step 3: Cross multiply
    183,793.20x = 275,689.80 × 90,481.20
  4. Step 4: Simplify right side
    183,793.20x = 24,944,743,931.76
  5. Step 5: Solve for x
    x = 24,944,743,931.76/183,793.20
  6. Step 6: Final answer
    x = 135,721.80

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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.