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Finding the Fourth Proportional to 263,487.98, 394,989.78 and 94,967.06

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Solution

The fourth proportional to 263,487.98, 394,989.78 and 94,967.06 is: 142,363.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,487.98 : 394,989.78 = 94,967.06 : x
  2. Step 2: Convert to fraction form
    263,487.98/394,989.78 = 94,967.06/x
  3. Step 3: Cross multiply
    263,487.98x = 394,989.78 × 94,967.06
  4. Step 4: Simplify right side
    263,487.98x = 37,511,018,136.65
  5. Step 5: Solve for x
    x = 37,511,018,136.65/263,487.98
  6. Step 6: Final answer
    x = 142,363.30

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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.