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Finding the Fourth Proportional to 321,080.67, 481,644.09 and 110,715.57

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Solution

The fourth proportional to 321,080.67, 481,644.09 and 110,715.57 is: 166,081.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,080.67 : 481,644.09 = 110,715.57 : x
  2. Step 2: Convert to fraction form
    321,080.67/481,644.09 = 110,715.57/x
  3. Step 3: Cross multiply
    321,080.67x = 481,644.09 × 110,715.57
  4. Step 4: Simplify right side
    321,080.67x = 53,325,499,961.48
  5. Step 5: Solve for x
    x = 53,325,499,961.48/321,080.67
  6. Step 6: Final answer
    x = 166,081.32

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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.