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Finding the Fourth Proportional to 68,481.78, 102,538.08 and 44,730.51

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Solution

The fourth proportional to 68,481.78, 102,538.08 and 44,730.51 is: 66,975.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,481.78 : 102,538.08 = 44,730.51 : x
  2. Step 2: Convert to fraction form
    68,481.78/102,538.08 = 44,730.51/x
  3. Step 3: Cross multiply
    68,481.78x = 102,538.08 × 44,730.51
  4. Step 4: Simplify right side
    68,481.78x = 4,586,580,612.82
  5. Step 5: Solve for x
    x = 4,586,580,612.82/68,481.78
  6. Step 6: Final answer
    x = 66,975.20

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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.