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Finding the Fourth Proportional to 73,144.38, 109,716.57 and 25,748.31

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Solution

The fourth proportional to 73,144.38, 109,716.57 and 25,748.31 is: 38,622.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,144.38 : 109,716.57 = 25,748.31 : x
  2. Step 2: Convert to fraction form
    73,144.38/109,716.57 = 25,748.31/x
  3. Step 3: Cross multiply
    73,144.38x = 109,716.57 × 25,748.31
  4. Step 4: Simplify right side
    73,144.38x = 2,825,016,256.50
  5. Step 5: Solve for x
    x = 2,825,016,256.50/73,144.38
  6. Step 6: Final answer
    x = 38,622.47

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1.5x scale

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.