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Finding the Fourth Proportional to 111,892.40, 167,839.02 and 45,333.80

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Solution

The fourth proportional to 111,892.40, 167,839.02 and 45,333.80 is: 68,000.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,892.40 : 167,839.02 = 45,333.80 : x
  2. Step 2: Convert to fraction form
    111,892.40/167,839.02 = 45,333.80/x
  3. Step 3: Cross multiply
    111,892.40x = 167,839.02 × 45,333.80
  4. Step 4: Simplify right side
    111,892.40x = 7,608,780,564.88
  5. Step 5: Solve for x
    x = 7,608,780,564.88/111,892.40
  6. Step 6: Final answer
    x = 68,000.87

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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.