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Finding the Fourth Proportional to 69,612.81, 95,993.06 and 41,313.03

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Solution

The fourth proportional to 69,612.81, 95,993.06 and 41,313.03 is: 56,968.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,612.81 : 95,993.06 = 41,313.03 : x
  2. Step 2: Convert to fraction form
    69,612.81/95,993.06 = 41,313.03/x
  3. Step 3: Cross multiply
    69,612.81x = 95,993.06 × 41,313.03
  4. Step 4: Simplify right side
    69,612.81x = 3,965,763,687.61
  5. Step 5: Solve for x
    x = 3,965,763,687.61/69,612.81
  6. Step 6: Final answer
    x = 56,968.88

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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.