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Finding the Fourth Proportional to 273.99, 410.98 and 111.68

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Solution

The fourth proportional to 273.99, 410.98 and 111.68 is: 167.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    273.99 : 410.98 = 111.68 : x
  2. Step 2: Convert to fraction form
    273.99/410.98 = 111.68/x
  3. Step 3: Cross multiply
    273.99x = 410.98 × 111.68
  4. Step 4: Simplify right side
    273.99x = 45,898.99
  5. Step 5: Solve for x
    x = 45,898.99/273.99
  6. Step 6: Final answer
    x = 167.52

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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.