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Finding the Fourth Proportional to 271.12, 373.87 and 212.01

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Solution

The fourth proportional to 271.12, 373.87 and 212.01 is: 292.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    271.12 : 373.87 = 212.01 : x
  2. Step 2: Convert to fraction form
    271.12/373.87 = 212.01/x
  3. Step 3: Cross multiply
    271.12x = 373.87 × 212.01
  4. Step 4: Simplify right side
    271.12x = 79,261.25
  5. Step 5: Solve for x
    x = 79,261.25/271.12
  6. Step 6: Final answer
    x = 292.35

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.