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Finding the Fourth Proportional to 61,135.97, 91,699.49 and 16,759.22

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Solution

The fourth proportional to 61,135.97, 91,699.49 and 16,759.22 is: 25,137.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,135.97 : 91,699.49 = 16,759.22 : x
  2. Step 2: Convert to fraction form
    61,135.97/91,699.49 = 16,759.22/x
  3. Step 3: Cross multiply
    61,135.97x = 91,699.49 × 16,759.22
  4. Step 4: Simplify right side
    61,135.97x = 1,536,811,510.20
  5. Step 5: Solve for x
    x = 1,536,811,510.20/61,135.97
  6. Step 6: Final answer
    x = 25,137.60

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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.