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Finding the Fourth Proportional to 303,705.12, 455,404.68 and 101,229.48

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Solution

The fourth proportional to 303,705.12, 455,404.68 and 101,229.48 is: 151,793.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,705.12 : 455,404.68 = 101,229.48 : x
  2. Step 2: Convert to fraction form
    303,705.12/455,404.68 = 101,229.48/x
  3. Step 3: Cross multiply
    303,705.12x = 455,404.68 × 101,229.48
  4. Step 4: Simplify right side
    303,705.12x = 46,100,378,945.97
  5. Step 5: Solve for x
    x = 46,100,378,945.97/303,705.12
  6. Step 6: Final answer
    x = 151,793.22

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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.