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Finding the Fourth Proportional to 353,664.36, 488,057.94 and 192,520.80

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Solution

The fourth proportional to 353,664.36, 488,057.94 and 192,520.80 is: 265,679.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,664.36 : 488,057.94 = 192,520.80 : x
  2. Step 2: Convert to fraction form
    353,664.36/488,057.94 = 192,520.80/x
  3. Step 3: Cross multiply
    353,664.36x = 488,057.94 × 192,520.80
  4. Step 4: Simplify right side
    353,664.36x = 93,961,305,055.15
  5. Step 5: Solve for x
    x = 93,961,305,055.15/353,664.36
  6. Step 6: Final answer
    x = 265,679.32

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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.