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Finding the Fourth Proportional to 325,343.96, 488,040.52 and 100,728.12

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Solution

The fourth proportional to 325,343.96, 488,040.52 and 100,728.12 is: 151,099.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,343.96 : 488,040.52 = 100,728.12 : x
  2. Step 2: Convert to fraction form
    325,343.96/488,040.52 = 100,728.12/x
  3. Step 3: Cross multiply
    325,343.96x = 488,040.52 × 100,728.12
  4. Step 4: Simplify right side
    325,343.96x = 49,159,404,063.42
  5. Step 5: Solve for x
    x = 49,159,404,063.42/325,343.96
  6. Step 6: Final answer
    x = 151,099.79

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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.