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Finding the Fourth Proportional to 199,391.88, 275,184.45 and 113,363.84

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Solution

The fourth proportional to 199,391.88, 275,184.45 and 113,363.84 is: 156,455.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,391.88 : 275,184.45 = 113,363.84 : x
  2. Step 2: Convert to fraction form
    199,391.88/275,184.45 = 113,363.84/x
  3. Step 3: Cross multiply
    199,391.88x = 275,184.45 × 113,363.84
  4. Step 4: Simplify right side
    199,391.88x = 31,195,964,584.37
  5. Step 5: Solve for x
    x = 31,195,964,584.37/199,391.88
  6. Step 6: Final answer
    x = 156,455.54

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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.