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Finding the Fourth Proportional to 215,908.73, 297,968.62 and 125,264.71

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Solution

The fourth proportional to 215,908.73, 297,968.62 and 125,264.71 is: 172,873.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,908.73 : 297,968.62 = 125,264.71 : x
  2. Step 2: Convert to fraction form
    215,908.73/297,968.62 = 125,264.71/x
  3. Step 3: Cross multiply
    215,908.73x = 297,968.62 × 125,264.71
  4. Step 4: Simplify right side
    215,908.73x = 37,324,951,715.32
  5. Step 5: Solve for x
    x = 37,324,951,715.32/215,908.73
  6. Step 6: Final answer
    x = 172,873.75

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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.