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Finding the Fourth Proportional to 194,522.78, 291,852.81 and 68,198.22

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Solution

The fourth proportional to 194,522.78, 291,852.81 and 68,198.22 is: 102,321.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    194,522.78 : 291,852.81 = 68,198.22 : x
  2. Step 2: Convert to fraction form
    194,522.78/291,852.81 = 68,198.22/x
  3. Step 3: Cross multiply
    194,522.78x = 291,852.81 × 68,198.22
  4. Step 4: Simplify right side
    194,522.78x = 19,903,842,144.00
  5. Step 5: Solve for x
    x = 19,903,842,144.00/194,522.78
  6. Step 6: Final answer
    x = 102,321.39

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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.