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Finding the Fourth Proportional to 108,694.26, 163,043.40 and 33,813.80

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Solution

The fourth proportional to 108,694.26, 163,043.40 and 33,813.80 is: 50,721.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,694.26 : 163,043.40 = 33,813.80 : x
  2. Step 2: Convert to fraction form
    108,694.26/163,043.40 = 33,813.80/x
  3. Step 3: Cross multiply
    108,694.26x = 163,043.40 × 33,813.80
  4. Step 4: Simplify right side
    108,694.26x = 5,513,116,918.92
  5. Step 5: Solve for x
    x = 5,513,116,918.92/108,694.26
  6. Step 6: Final answer
    x = 50,721.33

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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.