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Finding the Fourth Proportional to 349,626.05, 482,347.31 and 196,629.15

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Solution

The fourth proportional to 349,626.05, 482,347.31 and 196,629.15 is: 271,271.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,626.05 : 482,347.31 = 196,629.15 : x
  2. Step 2: Convert to fraction form
    349,626.05/482,347.31 = 196,629.15/x
  3. Step 3: Cross multiply
    349,626.05x = 482,347.31 × 196,629.15
  4. Step 4: Simplify right side
    349,626.05x = 94,843,544,054.80
  5. Step 5: Solve for x
    x = 94,843,544,054.80/349,626.05
  6. Step 6: Final answer
    x = 271,271.39

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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.