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Finding the Fourth Proportional to 326,993.22, 490,713.99 and 127,314.66

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Solution

The fourth proportional to 326,993.22, 490,713.99 and 127,314.66 is: 191,059.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,993.22 : 490,713.99 = 127,314.66 : x
  2. Step 2: Convert to fraction form
    326,993.22/490,713.99 = 127,314.66/x
  3. Step 3: Cross multiply
    326,993.22x = 490,713.99 × 127,314.66
  4. Step 4: Simplify right side
    326,993.22x = 62,475,084,794.09
  5. Step 5: Solve for x
    x = 62,475,084,794.09/326,993.22
  6. Step 6: Final answer
    x = 191,059.27

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.