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Finding the Fourth Proportional to 163,751.01, 225,976.05 and 92,131.13

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Solution

The fourth proportional to 163,751.01, 225,976.05 and 92,131.13 is: 127,140.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,751.01 : 225,976.05 = 92,131.13 : x
  2. Step 2: Convert to fraction form
    163,751.01/225,976.05 = 92,131.13/x
  3. Step 3: Cross multiply
    163,751.01x = 225,976.05 × 92,131.13
  4. Step 4: Simplify right side
    163,751.01x = 20,819,427,709.56
  5. Step 5: Solve for x
    x = 20,819,427,709.56/163,751.01
  6. Step 6: Final answer
    x = 127,140.76

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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.