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Finding the Fourth Proportional to 199,260.76, 274,978.05 and 108,616.72

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Solution

The fourth proportional to 199,260.76, 274,978.05 and 108,616.72 is: 149,890.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,260.76 : 274,978.05 = 108,616.72 : x
  2. Step 2: Convert to fraction form
    199,260.76/274,978.05 = 108,616.72/x
  3. Step 3: Cross multiply
    199,260.76x = 274,978.05 × 108,616.72
  4. Step 4: Simplify right side
    199,260.76x = 29,867,213,863.00
  5. Step 5: Solve for x
    x = 29,867,213,863.00/199,260.76
  6. Step 6: Final answer
    x = 149,890.09

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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.