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Finding the Fourth Proportional to 73,665.96, 101,659.05 and 40,131.96

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Solution

The fourth proportional to 73,665.96, 101,659.05 and 40,131.96 is: 55,382.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,665.96 : 101,659.05 = 40,131.96 : x
  2. Step 2: Convert to fraction form
    73,665.96/101,659.05 = 40,131.96/x
  3. Step 3: Cross multiply
    73,665.96x = 101,659.05 × 40,131.96
  4. Step 4: Simplify right side
    73,665.96x = 4,079,776,928.24
  5. Step 5: Solve for x
    x = 4,079,776,928.24/73,665.96
  6. Step 6: Final answer
    x = 55,382.12

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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.