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Finding the Fourth Proportional to 117,194.52, 161,728.37 and 63,479.41

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Solution

The fourth proportional to 117,194.52, 161,728.37 and 63,479.41 is: 87,601.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,194.52 : 161,728.37 = 63,479.41 : x
  2. Step 2: Convert to fraction form
    117,194.52/161,728.37 = 63,479.41/x
  3. Step 3: Cross multiply
    117,194.52x = 161,728.37 × 63,479.41
  4. Step 4: Simplify right side
    117,194.52x = 10,266,420,786.14
  5. Step 5: Solve for x
    x = 10,266,420,786.14/117,194.52
  6. Step 6: Final answer
    x = 87,601.54

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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.