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Finding the Fourth Proportional to 92,705.85, 138,976.30 and 33,528.36

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Solution

The fourth proportional to 92,705.85, 138,976.30 and 33,528.36 is: 50,262.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,705.85 : 138,976.30 = 33,528.36 : x
  2. Step 2: Convert to fraction form
    92,705.85/138,976.30 = 33,528.36/x
  3. Step 3: Cross multiply
    92,705.85x = 138,976.30 × 33,528.36
  4. Step 4: Simplify right side
    92,705.85x = 4,659,647,250.23
  5. Step 5: Solve for x
    x = 4,659,647,250.23/92,705.85
  6. Step 6: Final answer
    x = 50,262.71

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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.