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Finding the Fourth Proportional to 192,879.56, 266,112.29 and 124,948.61

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Solution

The fourth proportional to 192,879.56, 266,112.29 and 124,948.61 is: 172,389.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,879.56 : 266,112.29 = 124,948.61 : x
  2. Step 2: Convert to fraction form
    192,879.56/266,112.29 = 124,948.61/x
  3. Step 3: Cross multiply
    192,879.56x = 266,112.29 × 124,948.61
  4. Step 4: Simplify right side
    192,879.56x = 33,250,360,016.31
  5. Step 5: Solve for x
    x = 33,250,360,016.31/192,879.56
  6. Step 6: Final answer
    x = 172,389.23

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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.