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Finding the Fourth Proportional to 320,988.57, 481,481.67 and 96,348.03

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Solution

The fourth proportional to 320,988.57, 481,481.67 and 96,348.03 is: 144,521.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,988.57 : 481,481.67 = 96,348.03 : x
  2. Step 2: Convert to fraction form
    320,988.57/481,481.67 = 96,348.03/x
  3. Step 3: Cross multiply
    320,988.57x = 481,481.67 × 96,348.03
  4. Step 4: Simplify right side
    320,988.57x = 46,389,810,385.61
  5. Step 5: Solve for x
    x = 46,389,810,385.61/320,988.57
  6. Step 6: Final answer
    x = 144,521.69

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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.