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Finding the Fourth Proportional to 111,958.60, 167,976.30 and 49,673.80

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Solution

The fourth proportional to 111,958.60, 167,976.30 and 49,673.80 is: 74,527.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,958.60 : 167,976.30 = 49,673.80 : x
  2. Step 2: Convert to fraction form
    111,958.60/167,976.30 = 49,673.80/x
  3. Step 3: Cross multiply
    111,958.60x = 167,976.30 × 49,673.80
  4. Step 4: Simplify right side
    111,958.60x = 8,344,021,130.94
  5. Step 5: Solve for x
    x = 8,344,021,130.94/111,958.60
  6. Step 6: Final answer
    x = 74,527.74

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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.