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Finding the Fourth Proportional to 111,859.63, 167,847.81 and 45,348.91

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Solution

The fourth proportional to 111,859.63, 167,847.81 and 45,348.91 is: 68,047.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,859.63 : 167,847.81 = 45,348.91 : x
  2. Step 2: Convert to fraction form
    111,859.63/167,847.81 = 45,348.91/x
  3. Step 3: Cross multiply
    111,859.63x = 167,847.81 × 45,348.91
  4. Step 4: Simplify right side
    111,859.63x = 7,611,715,229.39
  5. Step 5: Solve for x
    x = 7,611,715,229.39/111,859.63
  6. Step 6: Final answer
    x = 68,047.03

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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.