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Finding the Fourth Proportional to 263,019.36, 394,628.36 and 157,911.60

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Solution

The fourth proportional to 263,019.36, 394,628.36 and 157,911.60 is: 236,927.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,019.36 : 394,628.36 = 157,911.60 : x
  2. Step 2: Convert to fraction form
    263,019.36/394,628.36 = 157,911.60/x
  3. Step 3: Cross multiply
    263,019.36x = 394,628.36 × 157,911.60
  4. Step 4: Simplify right side
    263,019.36x = 62,316,395,732.98
  5. Step 5: Solve for x
    x = 62,316,395,732.98/263,019.36
  6. Step 6: Final answer
    x = 236,927.03

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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.