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Finding the Fourth Proportional to 170,791.20, 235,936.80 and 163,792.80

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Solution

The fourth proportional to 170,791.20, 235,936.80 and 163,792.80 is: 226,268.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    170,791.20 : 235,936.80 = 163,792.80 : x
  2. Step 2: Convert to fraction form
    170,791.20/235,936.80 = 163,792.80/x
  3. Step 3: Cross multiply
    170,791.20x = 235,936.80 × 163,792.80
  4. Step 4: Simplify right side
    170,791.20x = 38,644,749,095.04
  5. Step 5: Solve for x
    x = 38,644,749,095.04/170,791.20
  6. Step 6: Final answer
    x = 226,268.97

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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.