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Finding the Fourth Proportional to 278,190.96, 417,273.89 and 116,018.22

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Solution

The fourth proportional to 278,190.96, 417,273.89 and 116,018.22 is: 174,022.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    278,190.96 : 417,273.89 = 116,018.22 : x
  2. Step 2: Convert to fraction form
    278,190.96/417,273.89 = 116,018.22/x
  3. Step 3: Cross multiply
    278,190.96x = 417,273.89 × 116,018.22
  4. Step 4: Simplify right side
    278,190.96x = 48,411,373,390.18
  5. Step 5: Solve for x
    x = 48,411,373,390.18/278,190.96
  6. Step 6: Final answer
    x = 174,022.09

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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.