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Finding the Fourth Proportional to 108,685.97, 149,958.25 and 62,734.37

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Solution

The fourth proportional to 108,685.97, 149,958.25 and 62,734.37 is: 86,557.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,685.97 : 149,958.25 = 62,734.37 : x
  2. Step 2: Convert to fraction form
    108,685.97/149,958.25 = 62,734.37/x
  3. Step 3: Cross multiply
    108,685.97x = 149,958.25 × 62,734.37
  4. Step 4: Simplify right side
    108,685.97x = 9,407,535,786.31
  5. Step 5: Solve for x
    x = 9,407,535,786.31/108,685.97
  6. Step 6: Final answer
    x = 86,557.04

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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.