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Finding the Fourth Proportional to 83,481.30, 115,203.94 and 45,241.94

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Solution

The fourth proportional to 83,481.30, 115,203.94 and 45,241.94 is: 62,433.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    83,481.30 : 115,203.94 = 45,241.94 : x
  2. Step 2: Convert to fraction form
    83,481.30/115,203.94 = 45,241.94/x
  3. Step 3: Cross multiply
    83,481.30x = 115,203.94 × 45,241.94
  4. Step 4: Simplify right side
    83,481.30x = 5,212,049,916.15
  5. Step 5: Solve for x
    x = 5,212,049,916.15/83,481.30
  6. Step 6: Final answer
    x = 62,433.74

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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.