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Finding the Fourth Proportional to 111,413.18, 167,107.88 and 31,449.18

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Solution

The fourth proportional to 111,413.18, 167,107.88 and 31,449.18 is: 47,170.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,413.18 : 167,107.88 = 31,449.18 : x
  2. Step 2: Convert to fraction form
    111,413.18/167,107.88 = 31,449.18/x
  3. Step 3: Cross multiply
    111,413.18x = 167,107.88 × 31,449.18
  4. Step 4: Simplify right side
    111,413.18x = 5,255,405,797.54
  5. Step 5: Solve for x
    x = 5,255,405,797.54/111,413.18
  6. Step 6: Final answer
    x = 47,170.41

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1.5x scale

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.