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Finding the Fourth Proportional to 148,577.10, 205,035.20 and 80,593.91

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Solution

The fourth proportional to 148,577.10, 205,035.20 and 80,593.91 is: 111,218.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    148,577.10 : 205,035.20 = 80,593.91 : x
  2. Step 2: Convert to fraction form
    148,577.10/205,035.20 = 80,593.91/x
  3. Step 3: Cross multiply
    148,577.10x = 205,035.20 × 80,593.91
  4. Step 4: Simplify right side
    148,577.10x = 16,524,587,027.49
  5. Step 5: Solve for x
    x = 16,524,587,027.49/148,577.10
  6. Step 6: Final answer
    x = 111,218.94

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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.