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Finding the Fourth Proportional to 91,578.71, 137,456.72 and 44,227.05

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Solution

The fourth proportional to 91,578.71, 137,456.72 and 44,227.05 is: 66,383.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,578.71 : 137,456.72 = 44,227.05 : x
  2. Step 2: Convert to fraction form
    91,578.71/137,456.72 = 44,227.05/x
  3. Step 3: Cross multiply
    91,578.71x = 137,456.72 × 44,227.05
  4. Step 4: Simplify right side
    91,578.71x = 6,079,305,007.14
  5. Step 5: Solve for x
    x = 6,079,305,007.14/91,578.71
  6. Step 6: Final answer
    x = 66,383.39

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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.