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Finding the Fourth Proportional to 205,791.60, 308,226.60 and 168,927.60

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Solution

The fourth proportional to 205,791.60, 308,226.60 and 168,927.60 is: 253,013.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,791.60 : 308,226.60 = 168,927.60 : x
  2. Step 2: Convert to fraction form
    205,791.60/308,226.60 = 168,927.60/x
  3. Step 3: Cross multiply
    205,791.60x = 308,226.60 × 168,927.60
  4. Step 4: Simplify right side
    205,791.60x = 52,067,979,794.16
  5. Step 5: Solve for x
    x = 52,067,979,794.16/205,791.60
  6. Step 6: Final answer
    x = 253,013.14

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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.