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Finding the Fourth Proportional to 424,136.98, 635,346.15 and 196,108.53

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Solution

The fourth proportional to 424,136.98, 635,346.15 and 196,108.53 is: 293,765.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,136.98 : 635,346.15 = 196,108.53 : x
  2. Step 2: Convert to fraction form
    424,136.98/635,346.15 = 196,108.53/x
  3. Step 3: Cross multiply
    424,136.98x = 635,346.15 × 196,108.53
  4. Step 4: Simplify right side
    424,136.98x = 124,596,799,517.66
  5. Step 5: Solve for x
    x = 124,596,799,517.66/424,136.98
  6. Step 6: Final answer
    x = 293,765.47

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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.