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Finding the Fourth Proportional to 79,571.54, 109,807.94 and 43,763.06

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Solution

The fourth proportional to 79,571.54, 109,807.94 and 43,763.06 is: 60,392.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,571.54 : 109,807.94 = 43,763.06 : x
  2. Step 2: Convert to fraction form
    79,571.54/109,807.94 = 43,763.06/x
  3. Step 3: Cross multiply
    79,571.54x = 109,807.94 × 43,763.06
  4. Step 4: Simplify right side
    79,571.54x = 4,805,530,698.84
  5. Step 5: Solve for x
    x = 4,805,530,698.84/79,571.54
  6. Step 6: Final answer
    x = 60,392.59

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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.