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Finding the Fourth Proportional to 108,083.49, 149,149.02 and 60,339.87

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Solution

The fourth proportional to 108,083.49, 149,149.02 and 60,339.87 is: 83,265.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,083.49 : 149,149.02 = 60,339.87 : x
  2. Step 2: Convert to fraction form
    108,083.49/149,149.02 = 60,339.87/x
  3. Step 3: Cross multiply
    108,083.49x = 149,149.02 × 60,339.87
  4. Step 4: Simplify right side
    108,083.49x = 8,999,632,477.43
  5. Step 5: Solve for x
    x = 8,999,632,477.43/108,083.49
  6. Step 6: Final answer
    x = 83,265.56

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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.