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Finding the Fourth Proportional to 68,973.50, 95,183.54 and 39,165.50

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Solution

The fourth proportional to 68,973.50, 95,183.54 and 39,165.50 is: 54,048.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,973.50 : 95,183.54 = 39,165.50 : x
  2. Step 2: Convert to fraction form
    68,973.50/95,183.54 = 39,165.50/x
  3. Step 3: Cross multiply
    68,973.50x = 95,183.54 × 39,165.50
  4. Step 4: Simplify right side
    68,973.50x = 3,727,910,935.87
  5. Step 5: Solve for x
    x = 3,727,910,935.87/68,973.50
  6. Step 6: Final answer
    x = 54,048.45

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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.