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Finding the Fourth Proportional to 111,406.80, 167,110.20 and 110,422.65

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Solution

The fourth proportional to 111,406.80, 167,110.20 and 110,422.65 is: 165,633.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,406.80 : 167,110.20 = 110,422.65 : x
  2. Step 2: Convert to fraction form
    111,406.80/167,110.20 = 110,422.65/x
  3. Step 3: Cross multiply
    111,406.80x = 167,110.20 × 110,422.65
  4. Step 4: Simplify right side
    111,406.80x = 18,452,751,126.03
  5. Step 5: Solve for x
    x = 18,452,751,126.03/111,406.80
  6. Step 6: Final answer
    x = 165,633.98

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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.