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Finding the Fourth Proportional to 68,578.26, 94,641.56 and 38,364.08

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Solution

The fourth proportional to 68,578.26, 94,641.56 and 38,364.08 is: 52,944.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,578.26 : 94,641.56 = 38,364.08 : x
  2. Step 2: Convert to fraction form
    68,578.26/94,641.56 = 38,364.08/x
  3. Step 3: Cross multiply
    68,578.26x = 94,641.56 × 38,364.08
  4. Step 4: Simplify right side
    68,578.26x = 3,630,836,711.68
  5. Step 5: Solve for x
    x = 3,630,836,711.68/68,578.26
  6. Step 6: Final answer
    x = 52,944.43

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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.