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Finding the Fourth Proportional to 277.83, 416.48 and 115.43

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Solution

The fourth proportional to 277.83, 416.48 and 115.43 is: 173.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    277.83 : 416.48 = 115.43 : x
  2. Step 2: Convert to fraction form
    277.83/416.48 = 115.43/x
  3. Step 3: Cross multiply
    277.83x = 416.48 × 115.43
  4. Step 4: Simplify right side
    277.83x = 48,071.63
  5. Step 5: Solve for x
    x = 48,071.63/277.83
  6. Step 6: Final answer
    x = 173.03

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