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Finding the Fourth Proportional to 353,969.69, 488,475.78 and 192,824.85

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Solution

The fourth proportional to 353,969.69, 488,475.78 and 192,824.85 is: 266,096.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,969.69 : 488,475.78 = 192,824.85 : x
  2. Step 2: Convert to fraction form
    353,969.69/488,475.78 = 192,824.85/x
  3. Step 3: Cross multiply
    353,969.69x = 488,475.78 × 192,824.85
  4. Step 4: Simplify right side
    353,969.69x = 94,190,269,007.13
  5. Step 5: Solve for x
    x = 94,190,269,007.13/353,969.69
  6. Step 6: Final answer
    x = 266,096.99

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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.