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Finding the Fourth Proportional to 186,026.56, 279,033.62 and 80,845.54

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Solution

The fourth proportional to 186,026.56, 279,033.62 and 80,845.54 is: 121,265.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    186,026.56 : 279,033.62 = 80,845.54 : x
  2. Step 2: Convert to fraction form
    186,026.56/279,033.62 = 80,845.54/x
  3. Step 3: Cross multiply
    186,026.56x = 279,033.62 × 80,845.54
  4. Step 4: Simplify right side
    186,026.56x = 22,558,623,687.05
  5. Step 5: Solve for x
    x = 22,558,623,687.05/186,026.56
  6. Step 6: Final answer
    x = 121,265.61

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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.