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Finding the Fourth Proportional to 163,791.96, 245,231.73 and 83,656.41

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Solution

The fourth proportional to 163,791.96, 245,231.73 and 83,656.41 is: 125,251.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,791.96 : 245,231.73 = 83,656.41 : x
  2. Step 2: Convert to fraction form
    163,791.96/245,231.73 = 83,656.41/x
  3. Step 3: Cross multiply
    163,791.96x = 245,231.73 × 83,656.41
  4. Step 4: Simplify right side
    163,791.96x = 20,515,206,149.89
  5. Step 5: Solve for x
    x = 20,515,206,149.89/163,791.96
  6. Step 6: Final answer
    x = 125,251.61

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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.