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Finding the Fourth Proportional to 133,689.33, 200,534.27 and 54,789.39

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Solution

The fourth proportional to 133,689.33, 200,534.27 and 54,789.39 is: 82,184.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,689.33 : 200,534.27 = 54,789.39 : x
  2. Step 2: Convert to fraction form
    133,689.33/200,534.27 = 54,789.39/x
  3. Step 3: Cross multiply
    133,689.33x = 200,534.27 × 54,789.39
  4. Step 4: Simplify right side
    133,689.33x = 10,987,150,053.45
  5. Step 5: Solve for x
    x = 10,987,150,053.45/133,689.33
  6. Step 6: Final answer
    x = 82,184.20

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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.