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Finding the Fourth Proportional to 263,178.67, 394,697.91 and 73,627.28

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Solution

The fourth proportional to 263,178.67, 394,697.91 and 73,627.28 is: 110,421.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,178.67 : 394,697.91 = 73,627.28 : x
  2. Step 2: Convert to fraction form
    263,178.67/394,697.91 = 73,627.28/x
  3. Step 3: Cross multiply
    263,178.67x = 394,697.91 × 73,627.28
  4. Step 4: Simplify right side
    263,178.67x = 29,060,533,317.71
  5. Step 5: Solve for x
    x = 29,060,533,317.71/263,178.67
  6. Step 6: Final answer
    x = 110,421.31

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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.