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Finding the Fourth Proportional to 268,136.60, 401,859.30 and 162,843.80

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Solution

The fourth proportional to 268,136.60, 401,859.30 and 162,843.80 is: 244,055.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    268,136.60 : 401,859.30 = 162,843.80 : x
  2. Step 2: Convert to fraction form
    268,136.60/401,859.30 = 162,843.80/x
  3. Step 3: Cross multiply
    268,136.60x = 401,859.30 × 162,843.80
  4. Step 4: Simplify right side
    268,136.60x = 65,440,295,477.34
  5. Step 5: Solve for x
    x = 65,440,295,477.34/268,136.60
  6. Step 6: Final answer
    x = 244,055.81

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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.