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Finding the Fourth Proportional to 315,360.73, 472,759.75 and 115,634.44

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Solution

The fourth proportional to 315,360.73, 472,759.75 and 115,634.44 is: 173,348.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,360.73 : 472,759.75 = 115,634.44 : x
  2. Step 2: Convert to fraction form
    315,360.73/472,759.75 = 115,634.44/x
  3. Step 3: Cross multiply
    315,360.73x = 472,759.75 × 115,634.44
  4. Step 4: Simplify right side
    315,360.73x = 54,667,308,945.79
  5. Step 5: Solve for x
    x = 54,667,308,945.79/315,360.73
  6. Step 6: Final answer
    x = 173,348.50

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.