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Finding the Fourth Proportional to 123,951.20, 171,052 and 67,362.08

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Solution

The fourth proportional to 123,951.20, 171,052 and 67,362.08 is: 92,959.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    123,951.20 : 171,052 = 67,362.08 : x
  2. Step 2: Convert to fraction form
    123,951.20/171,052 = 67,362.08/x
  3. Step 3: Cross multiply
    123,951.20x = 171,052 × 67,362.08
  4. Step 4: Simplify right side
    123,951.20x = 11,522,418,508.16
  5. Step 5: Solve for x
    x = 11,522,418,508.16/123,951.20
  6. Step 6: Final answer
    x = 92,959.31

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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.