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Finding the Fourth Proportional to 201, 301.56 and 92.86

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Solution

The fourth proportional to 201, 301.56 and 92.86 is: 139.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    201 : 301.56 = 92.86 : x
  2. Step 2: Convert to fraction form
    201/301.56 = 92.86/x
  3. Step 3: Cross multiply
    201x = 301.56 × 92.86
  4. Step 4: Simplify right side
    201x = 28,002.86
  5. Step 5: Solve for x
    x = 28,002.86/201
  6. Step 6: Final answer
    x = 139.32

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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.