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Finding the Fourth Proportional to 199,364.76, 275,119.92 and 108,721.44

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Solution

The fourth proportional to 199,364.76, 275,119.92 and 108,721.44 is: 150,033.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,364.76 : 275,119.92 = 108,721.44 : x
  2. Step 2: Convert to fraction form
    199,364.76/275,119.92 = 108,721.44/x
  3. Step 3: Cross multiply
    199,364.76x = 275,119.92 × 108,721.44
  4. Step 4: Simplify right side
    199,364.76x = 29,911,433,875.08
  5. Step 5: Solve for x
    x = 29,911,433,875.08/199,364.76
  6. Step 6: Final answer
    x = 150,033.71

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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.