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Finding the Fourth Proportional to 262,350, 393,591.42 and 75,361.50

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Solution

The fourth proportional to 262,350, 393,591.42 and 75,361.50 is: 113,061.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,350 : 393,591.42 = 75,361.50 : x
  2. Step 2: Convert to fraction form
    262,350/393,591.42 = 75,361.50/x
  3. Step 3: Cross multiply
    262,350x = 393,591.42 × 75,361.50
  4. Step 4: Simplify right side
    262,350x = 29,661,639,798.33
  5. Step 5: Solve for x
    x = 29,661,639,798.33/262,350
  6. Step 6: Final answer
    x = 113,061.33

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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.