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Finding the Fourth Proportional to 281,742.66, 422,682.84 and 82,059.84

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Solution

The fourth proportional to 281,742.66, 422,682.84 and 82,059.84 is: 123,109.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    281,742.66 : 422,682.84 = 82,059.84 : x
  2. Step 2: Convert to fraction form
    281,742.66/422,682.84 = 82,059.84/x
  3. Step 3: Cross multiply
    281,742.66x = 422,682.84 × 82,059.84
  4. Step 4: Simplify right side
    281,742.66x = 34,685,286,221.15
  5. Step 5: Solve for x
    x = 34,685,286,221.15/281,742.66
  6. Step 6: Final answer
    x = 123,109.81

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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.