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Finding the Fourth Proportional to 68,272.65, 102,455.41 and 41,896.89

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Solution

The fourth proportional to 68,272.65, 102,455.41 and 41,896.89 is: 62,873.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,272.65 : 102,455.41 = 41,896.89 : x
  2. Step 2: Convert to fraction form
    68,272.65/102,455.41 = 41,896.89/x
  3. Step 3: Cross multiply
    68,272.65x = 102,455.41 × 41,896.89
  4. Step 4: Simplify right side
    68,272.65x = 4,292,563,042.67
  5. Step 5: Solve for x
    x = 4,292,563,042.67/68,272.65
  6. Step 6: Final answer
    x = 62,873.83

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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.