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Finding the Fourth Proportional to 349,343.86, 482,083.37 and 196,388.50

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Solution

The fourth proportional to 349,343.86, 482,083.37 and 196,388.50 is: 271,009.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,343.86 : 482,083.37 = 196,388.50 : x
  2. Step 2: Convert to fraction form
    349,343.86/482,083.37 = 196,388.50/x
  3. Step 3: Cross multiply
    349,343.86x = 482,083.37 × 196,388.50
  4. Step 4: Simplify right side
    349,343.86x = 94,675,629,914.80
  5. Step 5: Solve for x
    x = 94,675,629,914.80/349,343.86
  6. Step 6: Final answer
    x = 271,009.86

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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.