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Finding the Fourth Proportional to 68,491.67, 94,578.71 and 43,042.28

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Solution

The fourth proportional to 68,491.67, 94,578.71 and 43,042.28 is: 59,436.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,491.67 : 94,578.71 = 43,042.28 : x
  2. Step 2: Convert to fraction form
    68,491.67/94,578.71 = 43,042.28/x
  3. Step 3: Cross multiply
    68,491.67x = 94,578.71 × 43,042.28
  4. Step 4: Simplify right side
    68,491.67x = 4,070,882,629.75
  5. Step 5: Solve for x
    x = 4,070,882,629.75/68,491.67
  6. Step 6: Final answer
    x = 59,436.18

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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.