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Finding the Fourth Proportional to 275,443.60, 413,408.40 and 162,983.20

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Solution

The fourth proportional to 275,443.60, 413,408.40 and 162,983.20 is: 244,618.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,443.60 : 413,408.40 = 162,983.20 : x
  2. Step 2: Convert to fraction form
    275,443.60/413,408.40 = 162,983.20/x
  3. Step 3: Cross multiply
    275,443.60x = 413,408.40 × 162,983.20
  4. Step 4: Simplify right side
    275,443.60x = 67,378,623,938.88
  5. Step 5: Solve for x
    x = 67,378,623,938.88/275,443.60
  6. Step 6: Final answer
    x = 244,618.59

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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.