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Finding the Fourth Proportional to 321,134.04, 481,682.57 and 96,489.72

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Solution

The fourth proportional to 321,134.04, 481,682.57 and 96,489.72 is: 144,729.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,134.04 : 481,682.57 = 96,489.72 : x
  2. Step 2: Convert to fraction form
    321,134.04/481,682.57 = 96,489.72/x
  3. Step 3: Cross multiply
    321,134.04x = 481,682.57 × 96,489.72
  4. Step 4: Simplify right side
    321,134.04x = 46,477,415,825.73
  5. Step 5: Solve for x
    x = 46,477,415,825.73/321,134.04
  6. Step 6: Final answer
    x = 144,729.02

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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.