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Finding the Fourth Proportional to 153.54, 211.92 and 104.44

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Solution

The fourth proportional to 153.54, 211.92 and 104.44 is: 144.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    153.54 : 211.92 = 104.44 : x
  2. Step 2: Convert to fraction form
    153.54/211.92 = 104.44/x
  3. Step 3: Cross multiply
    153.54x = 211.92 × 104.44
  4. Step 4: Simplify right side
    153.54x = 22,132.40
  5. Step 5: Solve for x
    x = 22,132.40/153.54
  6. Step 6: Final answer
    x = 144.15

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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.