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Finding the Fourth Proportional to 338,388.90, 466,945.56 and 195,121.26

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Solution

The fourth proportional to 338,388.90, 466,945.56 and 195,121.26 is: 269,249.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,388.90 : 466,945.56 = 195,121.26 : x
  2. Step 2: Convert to fraction form
    338,388.90/466,945.56 = 195,121.26/x
  3. Step 3: Cross multiply
    338,388.90x = 466,945.56 × 195,121.26
  4. Step 4: Simplify right side
    338,388.90x = 91,111,006,018.61
  5. Step 5: Solve for x
    x = 91,111,006,018.61/338,388.90
  6. Step 6: Final answer
    x = 269,249.39

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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.