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Finding the Fourth Proportional to 172,924.17, 259,413.08 and 73,084.79

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Solution

The fourth proportional to 172,924.17, 259,413.08 and 73,084.79 is: 109,638.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,924.17 : 259,413.08 = 73,084.79 : x
  2. Step 2: Convert to fraction form
    172,924.17/259,413.08 = 73,084.79/x
  3. Step 3: Cross multiply
    172,924.17x = 259,413.08 × 73,084.79
  4. Step 4: Simplify right side
    172,924.17x = 18,959,148,812.56
  5. Step 5: Solve for x
    x = 18,959,148,812.56/172,924.17
  6. Step 6: Final answer
    x = 109,638.51

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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.