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Finding the Fourth Proportional to 190,674, 263,129.41 and 104,634.43

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Solution

The fourth proportional to 190,674, 263,129.41 and 104,634.43 is: 144,395.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,674 : 263,129.41 = 104,634.43 : x
  2. Step 2: Convert to fraction form
    190,674/263,129.41 = 104,634.43/x
  3. Step 3: Cross multiply
    190,674x = 263,129.41 × 104,634.43
  4. Step 4: Simplify right side
    190,674x = 27,532,396,784.66
  5. Step 5: Solve for x
    x = 27,532,396,784.66/190,674
  6. Step 6: Final answer
    x = 144,395.13

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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.