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Finding the Fourth Proportional to 350,940.90, 484,296.86 and 189,796.07

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Solution

The fourth proportional to 350,940.90, 484,296.86 and 189,796.07 is: 261,917.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,940.90 : 484,296.86 = 189,796.07 : x
  2. Step 2: Convert to fraction form
    350,940.90/484,296.86 = 189,796.07/x
  3. Step 3: Cross multiply
    350,940.90x = 484,296.86 × 189,796.07
  4. Step 4: Simplify right side
    350,940.90x = 91,917,637,370.88
  5. Step 5: Solve for x
    x = 91,917,637,370.88/350,940.90
  6. Step 6: Final answer
    x = 261,917.71

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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.