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Finding the Fourth Proportional to 109,930.44, 151,663.59 and 66,892.44

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Solution

The fourth proportional to 109,930.44, 151,663.59 and 66,892.44 is: 92,286.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    109,930.44 : 151,663.59 = 66,892.44 : x
  2. Step 2: Convert to fraction form
    109,930.44/151,663.59 = 66,892.44/x
  3. Step 3: Cross multiply
    109,930.44x = 151,663.59 × 66,892.44
  4. Step 4: Simplify right side
    109,930.44x = 10,145,147,594.26
  5. Step 5: Solve for x
    x = 10,145,147,594.26/109,930.44
  6. Step 6: Final answer
    x = 92,286.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.