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Finding the Fourth Proportional to 126,753.43, 174,868.60 and 73,009.73

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Solution

The fourth proportional to 126,753.43, 174,868.60 and 73,009.73 is: 100,723.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,753.43 : 174,868.60 = 73,009.73 : x
  2. Step 2: Convert to fraction form
    126,753.43/174,868.60 = 73,009.73/x
  3. Step 3: Cross multiply
    126,753.43x = 174,868.60 × 73,009.73
  4. Step 4: Simplify right side
    126,753.43x = 12,767,109,271.48
  5. Step 5: Solve for x
    x = 12,767,109,271.48/126,753.43
  6. Step 6: Final answer
    x = 100,723.97

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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.