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Finding the Fourth Proportional to 236,836.98, 355,279.10 and 68,361.39

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Solution

The fourth proportional to 236,836.98, 355,279.10 and 68,361.39 is: 102,548.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,836.98 : 355,279.10 = 68,361.39 : x
  2. Step 2: Convert to fraction form
    236,836.98/355,279.10 = 68,361.39/x
  3. Step 3: Cross multiply
    236,836.98x = 355,279.10 × 68,361.39
  4. Step 4: Simplify right side
    236,836.98x = 24,287,372,772.14
  5. Step 5: Solve for x
    x = 24,287,372,772.14/236,836.98
  6. Step 6: Final answer
    x = 102,548.90

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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.