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Finding the Fourth Proportional to 70,249.74, 96,937.83 and 40,034.31

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Solution

The fourth proportional to 70,249.74, 96,937.83 and 40,034.31 is: 55,243.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,249.74 : 96,937.83 = 40,034.31 : x
  2. Step 2: Convert to fraction form
    70,249.74/96,937.83 = 40,034.31/x
  3. Step 3: Cross multiply
    70,249.74x = 96,937.83 × 40,034.31
  4. Step 4: Simplify right side
    70,249.74x = 3,880,839,136.95
  5. Step 5: Solve for x
    x = 3,880,839,136.95/70,249.74
  6. Step 6: Final answer
    x = 55,243.47

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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.