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Finding the Fourth Proportional to 61,167.78, 91,751.50 and 16,794.58

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Solution

The fourth proportional to 61,167.78, 91,751.50 and 16,794.58 is: 25,191.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,167.78 : 91,751.50 = 16,794.58 : x
  2. Step 2: Convert to fraction form
    61,167.78/91,751.50 = 16,794.58/x
  3. Step 3: Cross multiply
    61,167.78x = 91,751.50 × 16,794.58
  4. Step 4: Simplify right side
    61,167.78x = 1,540,927,906.87
  5. Step 5: Solve for x
    x = 1,540,927,906.87/61,167.78
  6. Step 6: Final answer
    x = 25,191.82

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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.