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Finding the Fourth Proportional to 61,078.44, 91,618.06 and 16,704.20

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Solution

The fourth proportional to 61,078.44, 91,618.06 and 16,704.20 is: 25,056.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,078.44 : 91,618.06 = 16,704.20 : x
  2. Step 2: Convert to fraction form
    61,078.44/91,618.06 = 16,704.20/x
  3. Step 3: Cross multiply
    61,078.44x = 91,618.06 × 16,704.20
  4. Step 4: Simplify right side
    61,078.44x = 1,530,406,397.85
  5. Step 5: Solve for x
    x = 1,530,406,397.85/61,078.44
  6. Step 6: Final answer
    x = 25,056.41

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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.