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Finding the Fourth Proportional to 133,062.80, 199,594.20 and 119,940.80

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Solution

The fourth proportional to 133,062.80, 199,594.20 and 119,940.80 is: 179,911.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,062.80 : 199,594.20 = 119,940.80 : x
  2. Step 2: Convert to fraction form
    133,062.80/199,594.20 = 119,940.80/x
  3. Step 3: Cross multiply
    133,062.80x = 199,594.20 × 119,940.80
  4. Step 4: Simplify right side
    133,062.80x = 23,939,488,023.36
  5. Step 5: Solve for x
    x = 23,939,488,023.36/133,062.80
  6. Step 6: Final answer
    x = 179,911.20

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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.