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Finding the Fourth Proportional to 73,670.84, 101,665.77 and 40,136.84

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Solution

The fourth proportional to 73,670.84, 101,665.77 and 40,136.84 is: 55,388.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,670.84 : 101,665.77 = 40,136.84 : x
  2. Step 2: Convert to fraction form
    73,670.84/101,665.77 = 40,136.84/x
  3. Step 3: Cross multiply
    73,670.84x = 101,665.77 × 40,136.84
  4. Step 4: Simplify right side
    73,670.84x = 4,080,542,743.97
  5. Step 5: Solve for x
    x = 4,080,542,743.97/73,670.84
  6. Step 6: Final answer
    x = 55,388.85

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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.