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Finding the Fourth Proportional to 496,563.21, 744,846.44 and 136,739.07

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Solution

The fourth proportional to 496,563.21, 744,846.44 and 136,739.07 is: 205,109.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,563.21 : 744,846.44 = 136,739.07 : x
  2. Step 2: Convert to fraction form
    496,563.21/744,846.44 = 136,739.07/x
  3. Step 3: Cross multiply
    496,563.21x = 744,846.44 × 136,739.07
  4. Step 4: Simplify right side
    496,563.21x = 101,849,608,814.72
  5. Step 5: Solve for x
    x = 101,849,608,814.72/496,563.21
  6. Step 6: Final answer
    x = 205,109.05

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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.