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Finding the Fourth Proportional to 303,867.70, 455,801.55 and 82,251.70

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Solution

The fourth proportional to 303,867.70, 455,801.55 and 82,251.70 is: 123,377.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,867.70 : 455,801.55 = 82,251.70 : x
  2. Step 2: Convert to fraction form
    303,867.70/455,801.55 = 82,251.70/x
  3. Step 3: Cross multiply
    303,867.70x = 455,801.55 × 82,251.70
  4. Step 4: Simplify right side
    303,867.70x = 37,490,452,350.14
  5. Step 5: Solve for x
    x = 37,490,452,350.14/303,867.70
  6. Step 6: Final answer
    x = 123,377.55

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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.