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Finding the Fourth Proportional to 133,912.10, 200,879.95 and 49,673.17

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Solution

The fourth proportional to 133,912.10, 200,879.95 and 49,673.17 is: 74,514.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,912.10 : 200,879.95 = 49,673.17 : x
  2. Step 2: Convert to fraction form
    133,912.10/200,879.95 = 49,673.17/x
  3. Step 3: Cross multiply
    133,912.10x = 200,879.95 × 49,673.17
  4. Step 4: Simplify right side
    133,912.10x = 9,978,342,996.05
  5. Step 5: Solve for x
    x = 9,978,342,996.05/133,912.10
  6. Step 6: Final answer
    x = 74,514.12

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.