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Finding the Fourth Proportional to 67,030.20, 100,610.10 and 33,787.80

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Solution

The fourth proportional to 67,030.20, 100,610.10 and 33,787.80 is: 50,714.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,030.20 : 100,610.10 = 33,787.80 : x
  2. Step 2: Convert to fraction form
    67,030.20/100,610.10 = 33,787.80/x
  3. Step 3: Cross multiply
    67,030.20x = 100,610.10 × 33,787.80
  4. Step 4: Simplify right side
    67,030.20x = 3,399,393,936.78
  5. Step 5: Solve for x
    x = 3,399,393,936.78/67,030.20
  6. Step 6: Final answer
    x = 50,714.36

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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.