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Finding the Fourth Proportional to 303,965.25, 455,947.89 and 82,349.25

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Solution

The fourth proportional to 303,965.25, 455,947.89 and 82,349.25 is: 123,523.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,965.25 : 455,947.89 = 82,349.25 : x
  2. Step 2: Convert to fraction form
    303,965.25/455,947.89 = 82,349.25/x
  3. Step 3: Cross multiply
    303,965.25x = 455,947.89 × 82,349.25
  4. Step 4: Simplify right side
    303,965.25x = 37,546,966,780.58
  5. Step 5: Solve for x
    x = 37,546,966,780.58/303,965.25
  6. Step 6: Final answer
    x = 123,523.88

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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.