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Finding the Fourth Proportional to 60,991.53, 84,168.74 and 34,136.52

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Solution

The fourth proportional to 60,991.53, 84,168.74 and 34,136.52 is: 47,108.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,991.53 : 84,168.74 = 34,136.52 : x
  2. Step 2: Convert to fraction form
    60,991.53/84,168.74 = 34,136.52/x
  3. Step 3: Cross multiply
    60,991.53x = 84,168.74 × 34,136.52
  4. Step 4: Simplify right side
    60,991.53x = 2,873,227,705.70
  5. Step 5: Solve for x
    x = 2,873,227,705.70/60,991.53
  6. Step 6: Final answer
    x = 47,108.63

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.