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Finding the Fourth Proportional to 199,433.76, 275,223.77 and 108,791.25

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Solution

The fourth proportional to 199,433.76, 275,223.77 and 108,791.25 is: 150,134.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,433.76 : 275,223.77 = 108,791.25 : x
  2. Step 2: Convert to fraction form
    199,433.76/275,223.77 = 108,791.25/x
  3. Step 3: Cross multiply
    199,433.76x = 275,223.77 × 108,791.25
  4. Step 4: Simplify right side
    199,433.76x = 29,941,937,424.06
  5. Step 5: Solve for x
    x = 29,941,937,424.06/199,433.76
  6. Step 6: Final answer
    x = 150,134.75

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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.