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Finding the Fourth Proportional to 190,398.32, 262,743.98 and 104,355.44

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Solution

The fourth proportional to 190,398.32, 262,743.98 and 104,355.44 is: 144,007.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,398.32 : 262,743.98 = 104,355.44 : x
  2. Step 2: Convert to fraction form
    190,398.32/262,743.98 = 104,355.44/x
  3. Step 3: Cross multiply
    190,398.32x = 262,743.98 × 104,355.44
  4. Step 4: Simplify right side
    190,398.32x = 27,418,763,083.54
  5. Step 5: Solve for x
    x = 27,418,763,083.54/190,398.32
  6. Step 6: Final answer
    x = 144,007.38

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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.