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Finding the Fourth Proportional to 172,923.80, 259,412.51 and 73,084.41

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Solution

The fourth proportional to 172,923.80, 259,412.51 and 73,084.41 is: 109,637.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,923.80 : 259,412.51 = 73,084.41 : x
  2. Step 2: Convert to fraction form
    172,923.80/259,412.51 = 73,084.41/x
  3. Step 3: Cross multiply
    172,923.80x = 259,412.51 × 73,084.41
  4. Step 4: Simplify right side
    172,923.80x = 18,959,010,422.68
  5. Step 5: Solve for x
    x = 18,959,010,422.68/172,923.80
  6. Step 6: Final answer
    x = 109,637.95

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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.