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Finding the Fourth Proportional to 262,361.80, 393,834.30 and 162,634.60

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Solution

The fourth proportional to 262,361.80, 393,834.30 and 162,634.60 is: 244,132.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,361.80 : 393,834.30 = 162,634.60 : x
  2. Step 2: Convert to fraction form
    262,361.80/393,834.30 = 162,634.60/x
  3. Step 3: Cross multiply
    262,361.80x = 393,834.30 × 162,634.60
  4. Step 4: Simplify right side
    262,361.80x = 64,051,083,846.78
  5. Step 5: Solve for x
    x = 64,051,083,846.78/262,361.80
  6. Step 6: Final answer
    x = 244,132.66

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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.