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Finding the Fourth Proportional to 199,191.93, 274,876.87 and 108,545.95

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Solution

The fourth proportional to 199,191.93, 274,876.87 and 108,545.95 is: 149,789.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,191.93 : 274,876.87 = 108,545.95 : x
  2. Step 2: Convert to fraction form
    199,191.93/274,876.87 = 108,545.95/x
  3. Step 3: Cross multiply
    199,191.93x = 274,876.87 × 108,545.95
  4. Step 4: Simplify right side
    199,191.93x = 29,836,771,924.01
  5. Step 5: Solve for x
    x = 29,836,771,924.01/199,191.93
  6. Step 6: Final answer
    x = 149,789.06

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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.