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Finding the Fourth Proportional to 199,879.96, 299,734.60 and 115,698.24

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Solution

The fourth proportional to 199,879.96, 299,734.60 and 115,698.24 is: 173,497.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,879.96 : 299,734.60 = 115,698.24 : x
  2. Step 2: Convert to fraction form
    199,879.96/299,734.60 = 115,698.24/x
  3. Step 3: Cross multiply
    199,879.96x = 299,734.60 × 115,698.24
  4. Step 4: Simplify right side
    199,879.96x = 34,678,765,687.10
  5. Step 5: Solve for x
    x = 34,678,765,687.10/199,879.96
  6. Step 6: Final answer
    x = 173,497.96

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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.