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Finding the Fourth Proportional to 117,241.54, 161,796.33 and 71,944.55

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Solution

The fourth proportional to 117,241.54, 161,796.33 and 71,944.55 is: 99,285.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,241.54 : 161,796.33 = 71,944.55 : x
  2. Step 2: Convert to fraction form
    117,241.54/161,796.33 = 71,944.55/x
  3. Step 3: Cross multiply
    117,241.54x = 161,796.33 × 71,944.55
  4. Step 4: Simplify right side
    117,241.54x = 11,640,363,344.52
  5. Step 5: Solve for x
    x = 11,640,363,344.52/117,241.54
  6. Step 6: Final answer
    x = 99,285.32

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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.