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Finding the Fourth Proportional to 61,713.08, 92,339.92 and 54,181

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Solution

The fourth proportional to 61,713.08, 92,339.92 and 54,181 is: 81,069.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,713.08 : 92,339.92 = 54,181 : x
  2. Step 2: Convert to fraction form
    61,713.08/92,339.92 = 54,181/x
  3. Step 3: Cross multiply
    61,713.08x = 92,339.92 × 54,181
  4. Step 4: Simplify right side
    61,713.08x = 5,003,069,205.52
  5. Step 5: Solve for x
    x = 5,003,069,205.52/61,713.08
  6. Step 6: Final answer
    x = 81,069.83

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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.