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Finding the Fourth Proportional to 321,182.40, 481,660.20 and 110,771.40

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Solution

The fourth proportional to 321,182.40, 481,660.20 and 110,771.40 is: 166,117.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,182.40 : 481,660.20 = 110,771.40 : x
  2. Step 2: Convert to fraction form
    321,182.40/481,660.20 = 110,771.40/x
  3. Step 3: Cross multiply
    321,182.40x = 481,660.20 × 110,771.40
  4. Step 4: Simplify right side
    321,182.40x = 53,354,174,678.28
  5. Step 5: Solve for x
    x = 53,354,174,678.28/321,182.40
  6. Step 6: Final answer
    x = 166,117.99

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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.