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Finding the Fourth Proportional to 327,978.53, 492,110.74 and 114,899.30

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Solution

The fourth proportional to 327,978.53, 492,110.74 and 114,899.30 is: 172,399.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    327,978.53 : 492,110.74 = 114,899.30 : x
  2. Step 2: Convert to fraction form
    327,978.53/492,110.74 = 114,899.30/x
  3. Step 3: Cross multiply
    327,978.53x = 492,110.74 × 114,899.30
  4. Step 4: Simplify right side
    327,978.53x = 56,543,177,087.93
  5. Step 5: Solve for x
    x = 56,543,177,087.93/327,978.53
  6. Step 6: Final answer
    x = 172,399.02

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.