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Finding the Fourth Proportional to 68,022.97, 93,657.29 and 61,717.29

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Solution

The fourth proportional to 68,022.97, 93,657.29 and 61,717.29 is: 84,975.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,022.97 : 93,657.29 = 61,717.29 : x
  2. Step 2: Convert to fraction form
    68,022.97/93,657.29 = 61,717.29/x
  3. Step 3: Cross multiply
    68,022.97x = 93,657.29 × 61,717.29
  4. Step 4: Simplify right side
    68,022.97x = 5,780,274,127.54
  5. Step 5: Solve for x
    x = 5,780,274,127.54/68,022.97
  6. Step 6: Final answer
    x = 84,975.33

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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.