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Finding the Fourth Proportional to 263,129.86, 394,670.18 and 73,607.28

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Solution

The fourth proportional to 263,129.86, 394,670.18 and 73,607.28 is: 110,404.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,129.86 : 394,670.18 = 73,607.28 : x
  2. Step 2: Convert to fraction form
    263,129.86/394,670.18 = 73,607.28/x
  3. Step 3: Cross multiply
    263,129.86x = 394,670.18 × 73,607.28
  4. Step 4: Simplify right side
    263,129.86x = 29,050,596,473.56
  5. Step 5: Solve for x
    x = 29,050,596,473.56/263,129.86
  6. Step 6: Final answer
    x = 110,404.03

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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.