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Finding the Fourth Proportional to 349,673.49, 482,544.81 and 196,711.20

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Solution

The fourth proportional to 349,673.49, 482,544.81 and 196,711.20 is: 271,458.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,673.49 : 482,544.81 = 196,711.20 : x
  2. Step 2: Convert to fraction form
    349,673.49/482,544.81 = 196,711.20/x
  3. Step 3: Cross multiply
    349,673.49x = 482,544.81 × 196,711.20
  4. Step 4: Simplify right side
    349,673.49x = 94,921,968,628.87
  5. Step 5: Solve for x
    x = 94,921,968,628.87/349,673.49
  6. Step 6: Final answer
    x = 271,458.86

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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.