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Finding the Fourth Proportional to 349.94, 482.91 and 194.69

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Solution

The fourth proportional to 349.94, 482.91 and 194.69 is: 268.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    349.94 : 482.91 = 194.69 : x
  2. Step 2: Convert to fraction form
    349.94/482.91 = 194.69/x
  3. Step 3: Cross multiply
    349.94x = 482.91 × 194.69
  4. Step 4: Simplify right side
    349.94x = 94,017.75
  5. Step 5: Solve for x
    x = 94,017.75/349.94
  6. Step 6: Final answer
    x = 268.67

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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.