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Finding the Fourth Proportional to 324,459.36, 447,749.20 and 181,221.44

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Solution

The fourth proportional to 324,459.36, 447,749.20 and 181,221.44 is: 250,082.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,459.36 : 447,749.20 = 181,221.44 : x
  2. Step 2: Convert to fraction form
    324,459.36/447,749.20 = 181,221.44/x
  3. Step 3: Cross multiply
    324,459.36x = 447,749.20 × 181,221.44
  4. Step 4: Simplify right side
    324,459.36x = 81,141,754,782.85
  5. Step 5: Solve for x
    x = 81,141,754,782.85/324,459.36
  6. Step 6: Final answer
    x = 250,082.95

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.