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Finding the Fourth Proportional to 190.13, 262.37 and 107.24

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Solution

The fourth proportional to 190.13, 262.37 and 107.24 is: 147.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    190.13 : 262.37 = 107.24 : x
  2. Step 2: Convert to fraction form
    190.13/262.37 = 107.24/x
  3. Step 3: Cross multiply
    190.13x = 262.37 × 107.24
  4. Step 4: Simplify right side
    190.13x = 28,134.71
  5. Step 5: Solve for x
    x = 28,134.71/190.13
  6. Step 6: Final answer
    x = 147.98

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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.