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Finding the Fourth Proportional to 190,847.52, 263,361.60 and 105,959.52

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Solution

The fourth proportional to 190,847.52, 263,361.60 and 105,959.52 is: 146,219.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,847.52 : 263,361.60 = 105,959.52 : x
  2. Step 2: Convert to fraction form
    190,847.52/263,361.60 = 105,959.52/x
  3. Step 3: Cross multiply
    190,847.52x = 263,361.60 × 105,959.52
  4. Step 4: Simplify right side
    190,847.52x = 27,905,668,722.43
  5. Step 5: Solve for x
    x = 27,905,668,722.43/190,847.52
  6. Step 6: Final answer
    x = 146,219.71

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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.