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Finding the Fourth Proportional to 215,795.96, 297,791.61 and 119,003.90

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Solution

The fourth proportional to 215,795.96, 297,791.61 and 119,003.90 is: 164,221.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,795.96 : 297,791.61 = 119,003.90 : x
  2. Step 2: Convert to fraction form
    215,795.96/297,791.61 = 119,003.90/x
  3. Step 3: Cross multiply
    215,795.96x = 297,791.61 × 119,003.90
  4. Step 4: Simplify right side
    215,795.96x = 35,438,362,717.13
  5. Step 5: Solve for x
    x = 35,438,362,717.13/215,795.96
  6. Step 6: Final answer
    x = 164,221.62

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.