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Finding the Fourth Proportional to 338,888.25, 467,687.67 and 187,985.25

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Solution

The fourth proportional to 338,888.25, 467,687.67 and 187,985.25 is: 259,431.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    338,888.25 : 467,687.67 = 187,985.25 : x
  2. Step 2: Convert to fraction form
    338,888.25/467,687.67 = 187,985.25/x
  3. Step 3: Cross multiply
    338,888.25x = 467,687.67 × 187,985.25
  4. Step 4: Simplify right side
    338,888.25x = 87,918,383,566.87
  5. Step 5: Solve for x
    x = 87,918,383,566.87/338,888.25
  6. Step 6: Final answer
    x = 259,431.78

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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.