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Finding the Fourth Proportional to 199,231.76, 274,931.73 and 108,585.87

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Solution

The fourth proportional to 199,231.76, 274,931.73 and 108,585.87 is: 149,844.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,231.76 : 274,931.73 = 108,585.87 : x
  2. Step 2: Convert to fraction form
    199,231.76/274,931.73 = 108,585.87/x
  3. Step 3: Cross multiply
    199,231.76x = 274,931.73 × 108,585.87
  4. Step 4: Simplify right side
    199,231.76x = 29,853,701,092.66
  5. Step 5: Solve for x
    x = 29,853,701,092.66/199,231.76
  6. Step 6: Final answer
    x = 149,844.09

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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.