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Finding the Fourth Proportional to 188,954.78, 260,745.62 and 104,071.84

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Solution

The fourth proportional to 188,954.78, 260,745.62 and 104,071.84 is: 143,612.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,954.78 : 260,745.62 = 104,071.84 : x
  2. Step 2: Convert to fraction form
    188,954.78/260,745.62 = 104,071.84/x
  3. Step 3: Cross multiply
    188,954.78x = 260,745.62 × 104,071.84
  4. Step 4: Simplify right side
    188,954.78x = 27,136,274,621.25
  5. Step 5: Solve for x
    x = 27,136,274,621.25/188,954.78
  6. Step 6: Final answer
    x = 143,612.53

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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.