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Finding the Fourth Proportional to 126,751.43, 174,865.84 and 73,007.73

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Solution

The fourth proportional to 126,751.43, 174,865.84 and 73,007.73 is: 100,721.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    126,751.43 : 174,865.84 = 73,007.73 : x
  2. Step 2: Convert to fraction form
    126,751.43/174,865.84 = 73,007.73/x
  3. Step 3: Cross multiply
    126,751.43x = 174,865.84 × 73,007.73
  4. Step 4: Simplify right side
    126,751.43x = 12,766,557,850.42
  5. Step 5: Solve for x
    x = 12,766,557,850.42/126,751.43
  6. Step 6: Final answer
    x = 100,721.21

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1.5x scale

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.