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Finding the Fourth Proportional to 61,107.52, 91,661.20 and 16,734.64

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Solution

The fourth proportional to 61,107.52, 91,661.20 and 16,734.64 is: 25,101.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,107.52 : 91,661.20 = 16,734.64 : x
  2. Step 2: Convert to fraction form
    61,107.52/91,661.20 = 16,734.64/x
  3. Step 3: Cross multiply
    61,107.52x = 91,661.20 × 16,734.64
  4. Step 4: Simplify right side
    61,107.52x = 1,533,917,183.97
  5. Step 5: Solve for x
    x = 1,533,917,183.97/61,107.52
  6. Step 6: Final answer
    x = 25,101.94

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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.