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Finding the Fourth Proportional to 122,283.56, 168,745.38 and 68,574.44

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Solution

The fourth proportional to 122,283.56, 168,745.38 and 68,574.44 is: 94,629.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    122,283.56 : 168,745.38 = 68,574.44 : x
  2. Step 2: Convert to fraction form
    122,283.56/168,745.38 = 68,574.44/x
  3. Step 3: Cross multiply
    122,283.56x = 168,745.38 × 68,574.44
  4. Step 4: Simplify right side
    122,283.56x = 11,571,619,936.09
  5. Step 5: Solve for x
    x = 11,571,619,936.09/122,283.56
  6. Step 6: Final answer
    x = 94,629.40

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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.