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Finding the Fourth Proportional to 245,664.63, 368,497.13 and 68,171.82

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Solution

The fourth proportional to 245,664.63, 368,497.13 and 68,171.82 is: 102,257.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,664.63 : 368,497.13 = 68,171.82 : x
  2. Step 2: Convert to fraction form
    245,664.63/368,497.13 = 68,171.82/x
  3. Step 3: Cross multiply
    245,664.63x = 368,497.13 × 68,171.82
  4. Step 4: Simplify right side
    245,664.63x = 25,121,120,016.88
  5. Step 5: Solve for x
    x = 25,121,120,016.88/245,664.63
  6. Step 6: Final answer
    x = 102,257.78

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.