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Finding the Fourth Proportional to 162.44, 243.61 and 46.85

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Solution

The fourth proportional to 162.44, 243.61 and 46.85 is: 70.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    162.44 : 243.61 = 46.85 : x
  2. Step 2: Convert to fraction form
    162.44/243.61 = 46.85/x
  3. Step 3: Cross multiply
    162.44x = 243.61 × 46.85
  4. Step 4: Simplify right side
    162.44x = 11,413.13
  5. Step 5: Solve for x
    x = 11,413.13/162.44
  6. Step 6: Final answer
    x = 70.26

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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.