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Finding the Fourth Proportional to 111,800.76, 167,701.14 and 28,694.76

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Solution

The fourth proportional to 111,800.76, 167,701.14 and 28,694.76 is: 43,042.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    111,800.76 : 167,701.14 = 28,694.76 : x
  2. Step 2: Convert to fraction form
    111,800.76/167,701.14 = 28,694.76/x
  3. Step 3: Cross multiply
    111,800.76x = 167,701.14 × 28,694.76
  4. Step 4: Simplify right side
    111,800.76x = 4,812,143,964.03
  5. Step 5: Solve for x
    x = 4,812,143,964.03/111,800.76
  6. Step 6: Final answer
    x = 43,042.14

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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.