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Finding the Fourth Proportional to 227,991.75, 341,987.67 and 61,779.75

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Solution

The fourth proportional to 227,991.75, 341,987.67 and 61,779.75 is: 92,669.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    227,991.75 : 341,987.67 = 61,779.75 : x
  2. Step 2: Convert to fraction form
    227,991.75/341,987.67 = 61,779.75/x
  3. Step 3: Cross multiply
    227,991.75x = 341,987.67 × 61,779.75
  4. Step 4: Simplify right side
    227,991.75x = 21,127,912,755.68
  5. Step 5: Solve for x
    x = 21,127,912,755.68/227,991.75
  6. Step 6: Final answer
    x = 92,669.64

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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.