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Finding the Fourth Proportional to 423,362.56, 635,050.32 and 107,825.44

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Solution

The fourth proportional to 423,362.56, 635,050.32 and 107,825.44 is: 161,739.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    423,362.56 : 635,050.32 = 107,825.44 : x
  2. Step 2: Convert to fraction form
    423,362.56/635,050.32 = 107,825.44/x
  3. Step 3: Cross multiply
    423,362.56x = 635,050.32 × 107,825.44
  4. Step 4: Simplify right side
    423,362.56x = 68,474,580,176.14
  5. Step 5: Solve for x
    x = 68,474,580,176.14/423,362.56
  6. Step 6: Final answer
    x = 161,739.81

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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.