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Finding the Fourth Proportional to 117,939.33, 162,754.66 and 66,951.61

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Solution

The fourth proportional to 117,939.33, 162,754.66 and 66,951.61 is: 92,392.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,939.33 : 162,754.66 = 66,951.61 : x
  2. Step 2: Convert to fraction form
    117,939.33/162,754.66 = 66,951.61/x
  3. Step 3: Cross multiply
    117,939.33x = 162,754.66 × 66,951.61
  4. Step 4: Simplify right side
    117,939.33x = 10,896,686,522.00
  5. Step 5: Solve for x
    x = 10,896,686,522.00/117,939.33
  6. Step 6: Final answer
    x = 92,392.30

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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.