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Finding the Fourth Proportional to 163,641.82, 225,824.28 and 92,020.31

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Solution

The fourth proportional to 163,641.82, 225,824.28 and 92,020.31 is: 126,987.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,641.82 : 225,824.28 = 92,020.31 : x
  2. Step 2: Convert to fraction form
    163,641.82/225,824.28 = 92,020.31/x
  3. Step 3: Cross multiply
    163,641.82x = 225,824.28 × 92,020.31
  4. Step 4: Simplify right side
    163,641.82x = 20,780,420,251.13
  5. Step 5: Solve for x
    x = 20,780,420,251.13/163,641.82
  6. Step 6: Final answer
    x = 126,987.22

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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.