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Finding the Fourth Proportional to 263.95, 395.93 and 126.93

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Solution

The fourth proportional to 263.95, 395.93 and 126.93 is: 190.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    263.95 : 395.93 = 126.93 : x
  2. Step 2: Convert to fraction form
    263.95/395.93 = 126.93/x
  3. Step 3: Cross multiply
    263.95x = 395.93 × 126.93
  4. Step 4: Simplify right side
    263.95x = 50,255.39
  5. Step 5: Solve for x
    x = 50,255.39/263.95
  6. Step 6: Final answer
    x = 190.40

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.