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Finding the Fourth Proportional to 140,356.68, 193,727.01 and 79,963.22

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Solution

The fourth proportional to 140,356.68, 193,727.01 and 79,963.22 is: 110,369.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,356.68 : 193,727.01 = 79,963.22 : x
  2. Step 2: Convert to fraction form
    140,356.68/193,727.01 = 79,963.22/x
  3. Step 3: Cross multiply
    140,356.68x = 193,727.01 × 79,963.22
  4. Step 4: Simplify right side
    140,356.68x = 15,491,034,551.94
  5. Step 5: Solve for x
    x = 15,491,034,551.94/140,356.68
  6. Step 6: Final answer
    x = 110,369.06

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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.