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Finding the Fourth Proportional to 188,396.44, 259,972.02 and 107,805.48

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Solution

The fourth proportional to 188,396.44, 259,972.02 and 107,805.48 is: 148,762.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,396.44 : 259,972.02 = 107,805.48 : x
  2. Step 2: Convert to fraction form
    188,396.44/259,972.02 = 107,805.48/x
  3. Step 3: Cross multiply
    188,396.44x = 259,972.02 × 107,805.48
  4. Step 4: Simplify right side
    188,396.44x = 28,026,408,402.67
  5. Step 5: Solve for x
    x = 28,026,408,402.67/188,396.44
  6. Step 6: Final answer
    x = 148,762.94

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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.