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Finding the Fourth Proportional to 111,939.60, 167,909.40 and 110,773.20

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Solution

The fourth proportional to 111,939.60, 167,909.40 and 110,773.20 is: 166,159.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,939.60 : 167,909.40 = 110,773.20 : x
  2. Step 2: Convert to fraction form
    111,939.60/167,909.40 = 110,773.20/x
  3. Step 3: Cross multiply
    111,939.60x = 167,909.40 × 110,773.20
  4. Step 4: Simplify right side
    111,939.60x = 18,599,861,548.08
  5. Step 5: Solve for x
    x = 18,599,861,548.08/111,939.60
  6. Step 6: Final answer
    x = 166,159.80

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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.