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Finding the Fourth Proportional to 308,978.60, 463,208.70 and 161,234.60

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Solution

The fourth proportional to 308,978.60, 463,208.70 and 161,234.60 is: 241,716.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,978.60 : 463,208.70 = 161,234.60 : x
  2. Step 2: Convert to fraction form
    308,978.60/463,208.70 = 161,234.60/x
  3. Step 3: Cross multiply
    308,978.60x = 463,208.70 × 161,234.60
  4. Step 4: Simplify right side
    308,978.60x = 74,685,269,461.02
  5. Step 5: Solve for x
    x = 74,685,269,461.02/308,978.60
  6. Step 6: Final answer
    x = 241,716.64

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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.