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Finding the Fourth Proportional to 190.26, 262.47 and 141.06

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Solution

The fourth proportional to 190.26, 262.47 and 141.06 is: 194.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    190.26 : 262.47 = 141.06 : x
  2. Step 2: Convert to fraction form
    190.26/262.47 = 141.06/x
  3. Step 3: Cross multiply
    190.26x = 262.47 × 141.06
  4. Step 4: Simplify right side
    190.26x = 37,024.02
  5. Step 5: Solve for x
    x = 37,024.02/190.26
  6. Step 6: Final answer
    x = 194.60

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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.