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Finding the Fourth Proportional to 108,108.54, 149,183.37 and 62,783.37

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Solution

The fourth proportional to 108,108.54, 149,183.37 and 62,783.37 is: 86,637.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    108,108.54 : 149,183.37 = 62,783.37 : x
  2. Step 2: Convert to fraction form
    108,108.54/149,183.37 = 62,783.37/x
  3. Step 3: Cross multiply
    108,108.54x = 149,183.37 × 62,783.37
  4. Step 4: Simplify right side
    108,108.54x = 9,366,234,716.56
  5. Step 5: Solve for x
    x = 9,366,234,716.56/108,108.54
  6. Step 6: Final answer
    x = 86,637.33

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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.