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Finding the Fourth Proportional to 111,074.40, 166,352.40 and 108,847.20

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Solution

The fourth proportional to 111,074.40, 166,352.40 and 108,847.20 is: 163,016.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,074.40 : 166,352.40 = 108,847.20 : x
  2. Step 2: Convert to fraction form
    111,074.40/166,352.40 = 108,847.20/x
  3. Step 3: Cross multiply
    111,074.40x = 166,352.40 × 108,847.20
  4. Step 4: Simplify right side
    111,074.40x = 18,106,992,953.28
  5. Step 5: Solve for x
    x = 18,106,992,953.28/111,074.40
  6. Step 6: Final answer
    x = 163,016.80

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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.