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Finding the Fourth Proportional to 275,167.80, 379,731.44 and 160,451.48

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Solution

The fourth proportional to 275,167.80, 379,731.44 and 160,451.48 is: 221,422.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,167.80 : 379,731.44 = 160,451.48 : x
  2. Step 2: Convert to fraction form
    275,167.80/379,731.44 = 160,451.48/x
  3. Step 3: Cross multiply
    275,167.80x = 379,731.44 × 160,451.48
  4. Step 4: Simplify right side
    275,167.80x = 60,928,472,900.99
  5. Step 5: Solve for x
    x = 60,928,472,900.99/275,167.80
  6. Step 6: Final answer
    x = 221,422.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.