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Finding the Fourth Proportional to 190,297.78, 262,599.65 and 104,239.56

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Solution

The fourth proportional to 190,297.78, 262,599.65 and 104,239.56 is: 143,844.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,297.78 : 262,599.65 = 104,239.56 : x
  2. Step 2: Convert to fraction form
    190,297.78/262,599.65 = 104,239.56/x
  3. Step 3: Cross multiply
    190,297.78x = 262,599.65 × 104,239.56
  4. Step 4: Simplify right side
    190,297.78x = 27,373,271,972.15
  5. Step 5: Solve for x
    x = 27,373,271,972.15/190,297.78
  6. Step 6: Final answer
    x = 143,844.41

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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.