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Finding the Fourth Proportional to 321,040.80, 481,628.16 and 96,392.16

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Solution

The fourth proportional to 321,040.80, 481,628.16 and 96,392.16 is: 144,608.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,040.80 : 481,628.16 = 96,392.16 : x
  2. Step 2: Convert to fraction form
    321,040.80/481,628.16 = 96,392.16/x
  3. Step 3: Cross multiply
    321,040.80x = 481,628.16 × 96,392.16
  4. Step 4: Simplify right side
    321,040.80x = 46,425,178,659.23
  5. Step 5: Solve for x
    x = 46,425,178,659.23/321,040.80
  6. Step 6: Final answer
    x = 144,608.34

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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.