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Finding the Fourth Proportional to 79,982.56, 119,980.22 and 27,392.50

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Solution

The fourth proportional to 79,982.56, 119,980.22 and 27,392.50 is: 41,090.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    79,982.56 : 119,980.22 = 27,392.50 : x
  2. Step 2: Convert to fraction form
    79,982.56/119,980.22 = 27,392.50/x
  3. Step 3: Cross multiply
    79,982.56x = 119,980.22 × 27,392.50
  4. Step 4: Simplify right side
    79,982.56x = 3,286,558,176.35
  5. Step 5: Solve for x
    x = 3,286,558,176.35/79,982.56
  6. Step 6: Final answer
    x = 41,090.94

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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.