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Finding the Fourth Proportional to 193,545.70, 267,089.12 and 108,662.76

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Solution

The fourth proportional to 193,545.70, 267,089.12 and 108,662.76 is: 149,952.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,545.70 : 267,089.12 = 108,662.76 : x
  2. Step 2: Convert to fraction form
    193,545.70/267,089.12 = 108,662.76/x
  3. Step 3: Cross multiply
    193,545.70x = 267,089.12 × 108,662.76
  4. Step 4: Simplify right side
    193,545.70x = 29,022,640,945.17
  5. Step 5: Solve for x
    x = 29,022,640,945.17/193,545.70
  6. Step 6: Final answer
    x = 149,952.39

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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.