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Finding the Fourth Proportional to 349,228.79, 481,975.67 and 194,195.54

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Solution

The fourth proportional to 349,228.79, 481,975.67 and 194,195.54 is: 268,012.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,228.79 : 481,975.67 = 194,195.54 : x
  2. Step 2: Convert to fraction form
    349,228.79/481,975.67 = 194,195.54/x
  3. Step 3: Cross multiply
    349,228.79x = 481,975.67 × 194,195.54
  4. Step 4: Simplify right side
    349,228.79x = 93,597,523,578.12
  5. Step 5: Solve for x
    x = 93,597,523,578.12/349,228.79
  6. Step 6: Final answer
    x = 268,012.05

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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.