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Finding the Fourth Proportional to 94,062.70, 140,940.45 and 80,853.10

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Solution

The fourth proportional to 94,062.70, 140,940.45 and 80,853.10 is: 121,147.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    94,062.70 : 140,940.45 = 80,853.10 : x
  2. Step 2: Convert to fraction form
    94,062.70/140,940.45 = 80,853.10/x
  3. Step 3: Cross multiply
    94,062.70x = 140,940.45 × 80,853.10
  4. Step 4: Simplify right side
    94,062.70x = 11,395,472,297.90
  5. Step 5: Solve for x
    x = 11,395,472,297.90/94,062.70
  6. Step 6: Final answer
    x = 121,147.62

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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.