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Finding the Fourth Proportional to 353,921.97, 488,419.82 and 192,776.64

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Solution

The fourth proportional to 353,921.97, 488,419.82 and 192,776.64 is: 266,035.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,921.97 : 488,419.82 = 192,776.64 : x
  2. Step 2: Convert to fraction form
    353,921.97/488,419.82 = 192,776.64/x
  3. Step 3: Cross multiply
    353,921.97x = 488,419.82 × 192,776.64
  4. Step 4: Simplify right side
    353,921.97x = 94,155,929,736.46
  5. Step 5: Solve for x
    x = 94,155,929,736.46/353,921.97
  6. Step 6: Final answer
    x = 266,035.84

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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.