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Finding the Fourth Proportional to 205,410.80, 308,116.20 and 182,601.20

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Solution

The fourth proportional to 205,410.80, 308,116.20 and 182,601.20 is: 273,901.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,410.80 : 308,116.20 = 182,601.20 : x
  2. Step 2: Convert to fraction form
    205,410.80/308,116.20 = 182,601.20/x
  3. Step 3: Cross multiply
    205,410.80x = 308,116.20 × 182,601.20
  4. Step 4: Simplify right side
    205,410.80x = 56,262,387,859.44
  5. Step 5: Solve for x
    x = 56,262,387,859.44/205,410.80
  6. Step 6: Final answer
    x = 273,901.80

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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.