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Finding the Fourth Proportional to 108,230.44, 149,261.31 and 67,947.96

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Solution

The fourth proportional to 108,230.44, 149,261.31 and 67,947.96 is: 93,707.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,230.44 : 149,261.31 = 67,947.96 : x
  2. Step 2: Convert to fraction form
    108,230.44/149,261.31 = 67,947.96/x
  3. Step 3: Cross multiply
    108,230.44x = 149,261.31 × 67,947.96
  4. Step 4: Simplify right side
    108,230.44x = 10,142,001,521.43
  5. Step 5: Solve for x
    x = 10,142,001,521.43/108,230.44
  6. Step 6: Final answer
    x = 93,707.48

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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.