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Finding the Fourth Proportional to 215,553.73, 297,469.51 and 120,062.02

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Solution

The fourth proportional to 215,553.73, 297,469.51 and 120,062.02 is: 165,688.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,553.73 : 297,469.51 = 120,062.02 : x
  2. Step 2: Convert to fraction form
    215,553.73/297,469.51 = 120,062.02/x
  3. Step 3: Cross multiply
    215,553.73x = 297,469.51 × 120,062.02
  4. Step 4: Simplify right side
    215,553.73x = 35,714,789,215.18
  5. Step 5: Solve for x
    x = 35,714,789,215.18/215,553.73
  6. Step 6: Final answer
    x = 165,688.57

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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.