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Finding the Fourth Proportional to 68,646.81, 94,727.40 and 41,786.34

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Solution

The fourth proportional to 68,646.81, 94,727.40 and 41,786.34 is: 57,661.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,646.81 : 94,727.40 = 41,786.34 : x
  2. Step 2: Convert to fraction form
    68,646.81/94,727.40 = 41,786.34/x
  3. Step 3: Cross multiply
    68,646.81x = 94,727.40 × 41,786.34
  4. Step 4: Simplify right side
    68,646.81x = 3,958,311,343.72
  5. Step 5: Solve for x
    x = 3,958,311,343.72/68,646.81
  6. Step 6: Final answer
    x = 57,661.99

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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.