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Finding the Fourth Proportional to 353,965.33, 488,469.65 and 192,819.88

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Solution

The fourth proportional to 353,965.33, 488,469.65 and 192,819.88 is: 266,090.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,965.33 : 488,469.65 = 192,819.88 : x
  2. Step 2: Convert to fraction form
    353,965.33/488,469.65 = 192,819.88/x
  3. Step 3: Cross multiply
    353,965.33x = 488,469.65 × 192,819.88
  4. Step 4: Simplify right side
    353,965.33x = 94,186,659,296.64
  5. Step 5: Solve for x
    x = 94,186,659,296.64/353,965.33
  6. Step 6: Final answer
    x = 266,090.07

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.