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Finding the Fourth Proportional to 111,786.20, 167,630.70 and 36,877.40

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Solution

The fourth proportional to 111,786.20, 167,630.70 and 36,877.40 is: 55,300.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,786.20 : 167,630.70 = 36,877.40 : x
  2. Step 2: Convert to fraction form
    111,786.20/167,630.70 = 36,877.40/x
  3. Step 3: Cross multiply
    111,786.20x = 167,630.70 × 36,877.40
  4. Step 4: Simplify right side
    111,786.20x = 6,181,784,376.18
  5. Step 5: Solve for x
    x = 6,181,784,376.18/111,786.20
  6. Step 6: Final answer
    x = 55,300.07

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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.