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Finding the Fourth Proportional to 500,732.56, 751,099.40 and 126,755.56

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Solution

The fourth proportional to 500,732.56, 751,099.40 and 126,755.56 is: 190,133.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,732.56 : 751,099.40 = 126,755.56 : x
  2. Step 2: Convert to fraction form
    500,732.56/751,099.40 = 126,755.56/x
  3. Step 3: Cross multiply
    500,732.56x = 751,099.40 × 126,755.56
  4. Step 4: Simplify right side
    500,732.56x = 95,206,025,062.66
  5. Step 5: Solve for x
    x = 95,206,025,062.66/500,732.56
  6. Step 6: Final answer
    x = 190,133.48

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.