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Finding the Fourth Proportional to 381,080.09, 571,620.34 and 96,791.96

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Solution

The fourth proportional to 381,080.09, 571,620.34 and 96,791.96 is: 145,188.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    381,080.09 : 571,620.34 = 96,791.96 : x
  2. Step 2: Convert to fraction form
    381,080.09/571,620.34 = 96,791.96/x
  3. Step 3: Cross multiply
    381,080.09x = 571,620.34 × 96,791.96
  4. Step 4: Simplify right side
    381,080.09x = 55,328,254,634.51
  5. Step 5: Solve for x
    x = 55,328,254,634.51/381,080.09
  6. Step 6: Final answer
    x = 145,188.00

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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.