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Finding the Fourth Proportional to 126,806.58, 174,992.81 and 73,091.23

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Solution

The fourth proportional to 126,806.58, 174,992.81 and 73,091.23 is: 100,865.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,806.58 : 174,992.81 = 73,091.23 : x
  2. Step 2: Convert to fraction form
    126,806.58/174,992.81 = 73,091.23/x
  3. Step 3: Cross multiply
    126,806.58x = 174,992.81 × 73,091.23
  4. Step 4: Simplify right side
    126,806.58x = 12,790,438,921.12
  5. Step 5: Solve for x
    x = 12,790,438,921.12/126,806.58
  6. Step 6: Final answer
    x = 100,865.74

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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.