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Finding the Fourth Proportional to 325,910.12, 488,771.76 and 98,227.79

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Solution

The fourth proportional to 325,910.12, 488,771.76 and 98,227.79 is: 147,313.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,910.12 : 488,771.76 = 98,227.79 : x
  2. Step 2: Convert to fraction form
    325,910.12/488,771.76 = 98,227.79/x
  3. Step 3: Cross multiply
    325,910.12x = 488,771.76 × 98,227.79
  4. Step 4: Simplify right side
    325,910.12x = 48,010,969,799.21
  5. Step 5: Solve for x
    x = 48,010,969,799.21/325,910.12
  6. Step 6: Final answer
    x = 147,313.53

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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.