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Finding the Fourth Proportional to 199,399.67, 275,164.83 and 118,785.44

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Solution

The fourth proportional to 199,399.67, 275,164.83 and 118,785.44 is: 163,919.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,399.67 : 275,164.83 = 118,785.44 : x
  2. Step 2: Convert to fraction form
    199,399.67/275,164.83 = 118,785.44/x
  3. Step 3: Cross multiply
    199,399.67x = 275,164.83 × 118,785.44
  4. Step 4: Simplify right side
    199,399.67x = 32,685,574,028.25
  5. Step 5: Solve for x
    x = 32,685,574,028.25/199,399.67
  6. Step 6: Final answer
    x = 163,919.90

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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.