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Finding the Fourth Proportional to 301,270.96, 451,944.12 and 90,908.56

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Solution

The fourth proportional to 301,270.96, 451,944.12 and 90,908.56 is: 136,374.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,270.96 : 451,944.12 = 90,908.56 : x
  2. Step 2: Convert to fraction form
    301,270.96/451,944.12 = 90,908.56/x
  3. Step 3: Cross multiply
    301,270.96x = 451,944.12 × 90,908.56
  4. Step 4: Simplify right side
    301,270.96x = 41,085,589,149.67
  5. Step 5: Solve for x
    x = 41,085,589,149.67/301,270.96
  6. Step 6: Final answer
    x = 136,374.21

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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.