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Finding the Fourth Proportional to 349,316.53, 482,107.85 and 196,367.31

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Solution

The fourth proportional to 349,316.53, 482,107.85 and 196,367.31 is: 271,015.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,316.53 : 482,107.85 = 196,367.31 : x
  2. Step 2: Convert to fraction form
    349,316.53/482,107.85 = 196,367.31/x
  3. Step 3: Cross multiply
    349,316.53x = 482,107.85 × 196,367.31
  4. Step 4: Simplify right side
    349,316.53x = 94,670,221,388.92
  5. Step 5: Solve for x
    x = 94,670,221,388.92/349,316.53
  6. Step 6: Final answer
    x = 271,015.58

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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.