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Finding the Fourth Proportional to 262,518.80, 394,069.80 and 162,791.60

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Solution

The fourth proportional to 262,518.80, 394,069.80 and 162,791.60 is: 244,368.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,518.80 : 394,069.80 = 162,791.60 : x
  2. Step 2: Convert to fraction form
    262,518.80/394,069.80 = 162,791.60/x
  3. Step 3: Cross multiply
    262,518.80x = 394,069.80 × 162,791.60
  4. Step 4: Simplify right side
    262,518.80x = 64,151,253,253.68
  5. Step 5: Solve for x
    x = 64,151,253,253.68/262,518.80
  6. Step 6: Final answer
    x = 244,368.23

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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.