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Finding the Fourth Proportional to 61,164.88, 91,786.30 and 27,888.26

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Solution

The fourth proportional to 61,164.88, 91,786.30 and 27,888.26 is: 41,850.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,164.88 : 91,786.30 = 27,888.26 : x
  2. Step 2: Convert to fraction form
    61,164.88/91,786.30 = 27,888.26/x
  3. Step 3: Cross multiply
    61,164.88x = 91,786.30 × 27,888.26
  4. Step 4: Simplify right side
    61,164.88x = 2,559,760,198.84
  5. Step 5: Solve for x
    x = 2,559,760,198.84/61,164.88
  6. Step 6: Final answer
    x = 41,850.16

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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.