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Finding the Fourth Proportional to 133,481.20, 200,221.80 and 132,703.60

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Solution

The fourth proportional to 133,481.20, 200,221.80 and 132,703.60 is: 199,055.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,481.20 : 200,221.80 = 132,703.60 : x
  2. Step 2: Convert to fraction form
    133,481.20/200,221.80 = 132,703.60/x
  3. Step 3: Cross multiply
    133,481.20x = 200,221.80 × 132,703.60
  4. Step 4: Simplify right side
    133,481.20x = 26,570,153,658.48
  5. Step 5: Solve for x
    x = 26,570,153,658.48/133,481.20
  6. Step 6: Final answer
    x = 199,055.40

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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.