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Finding the Fourth Proportional to 192,747.87, 266,019.90 and 111,060.48

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Solution

The fourth proportional to 192,747.87, 266,019.90 and 111,060.48 is: 153,279.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,747.87 : 266,019.90 = 111,060.48 : x
  2. Step 2: Convert to fraction form
    192,747.87/266,019.90 = 111,060.48/x
  3. Step 3: Cross multiply
    192,747.87x = 266,019.90 × 111,060.48
  4. Step 4: Simplify right side
    192,747.87x = 29,544,298,364.65
  5. Step 5: Solve for x
    x = 29,544,298,364.65/192,747.87
  6. Step 6: Final answer
    x = 153,279.51

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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.