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Finding the Fourth Proportional to 108,481.90, 149,687.75 and 60,737.26

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Solution

The fourth proportional to 108,481.90, 149,687.75 and 60,737.26 is: 83,807.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,481.90 : 149,687.75 = 60,737.26 : x
  2. Step 2: Convert to fraction form
    108,481.90/149,687.75 = 60,737.26/x
  3. Step 3: Cross multiply
    108,481.90x = 149,687.75 × 60,737.26
  4. Step 4: Simplify right side
    108,481.90x = 9,091,623,790.57
  5. Step 5: Solve for x
    x = 9,091,623,790.57/108,481.90
  6. Step 6: Final answer
    x = 83,807.75

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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.