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Finding the Fourth Proportional to 500,731.08, 751,099.92 and 126,754.08

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Solution

The fourth proportional to 500,731.08, 751,099.92 and 126,754.08 is: 190,131.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,731.08 : 751,099.92 = 126,754.08 : x
  2. Step 2: Convert to fraction form
    500,731.08/751,099.92 = 126,754.08/x
  3. Step 3: Cross multiply
    500,731.08x = 751,099.92 × 126,754.08
  4. Step 4: Simplify right side
    500,731.08x = 95,204,979,347.67
  5. Step 5: Solve for x
    x = 95,204,979,347.67/500,731.08
  6. Step 6: Final answer
    x = 190,131.96

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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.