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Finding the Fourth Proportional to 330,131.80, 495,230.51 and 119,786.14

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Solution

The fourth proportional to 330,131.80, 495,230.51 and 119,786.14 is: 179,691.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    330,131.80 : 495,230.51 = 119,786.14 : x
  2. Step 2: Convert to fraction form
    330,131.80/495,230.51 = 119,786.14/x
  3. Step 3: Cross multiply
    330,131.80x = 495,230.51 × 119,786.14
  4. Step 4: Simplify right side
    330,131.80x = 59,321,751,203.13
  5. Step 5: Solve for x
    x = 59,321,751,203.13/330,131.80
  6. Step 6: Final answer
    x = 179,691.11

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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.