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Finding the Fourth Proportional to 111,230.60, 166,860.30 and 55,099.40

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Solution

The fourth proportional to 111,230.60, 166,860.30 and 55,099.40 is: 82,656.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,230.60 : 166,860.30 = 55,099.40 : x
  2. Step 2: Convert to fraction form
    111,230.60/166,860.30 = 55,099.40/x
  3. Step 3: Cross multiply
    111,230.60x = 166,860.30 × 55,099.40
  4. Step 4: Simplify right side
    111,230.60x = 9,193,902,413.82
  5. Step 5: Solve for x
    x = 9,193,902,413.82/111,230.60
  6. Step 6: Final answer
    x = 82,656.23

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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.