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Finding the Fourth Proportional to 108,467.94, 149,694.38 and 79,918.04

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Solution

The fourth proportional to 108,467.94, 149,694.38 and 79,918.04 is: 110,293.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,467.94 : 149,694.38 = 79,918.04 : x
  2. Step 2: Convert to fraction form
    108,467.94/149,694.38 = 79,918.04/x
  3. Step 3: Cross multiply
    108,467.94x = 149,694.38 × 79,918.04
  4. Step 4: Simplify right side
    108,467.94x = 11,963,281,722.95
  5. Step 5: Solve for x
    x = 11,963,281,722.95/108,467.94
  6. Step 6: Final answer
    x = 110,293.25

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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.