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Finding the Fourth Proportional to 108,658.98, 149,949.36 and 60,912.36

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Solution

The fourth proportional to 108,658.98, 149,949.36 and 60,912.36 is: 84,059.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,658.98 : 149,949.36 = 60,912.36 : x
  2. Step 2: Convert to fraction form
    108,658.98/149,949.36 = 60,912.36/x
  3. Step 3: Cross multiply
    108,658.98x = 149,949.36 × 60,912.36
  4. Step 4: Simplify right side
    108,658.98x = 9,133,769,398.09
  5. Step 5: Solve for x
    x = 9,133,769,398.09/108,658.98
  6. Step 6: Final answer
    x = 84,059.04

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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.