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Finding the Fourth Proportional to 172,997.94, 259,534.54 and 53,054.94

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Solution

The fourth proportional to 172,997.94, 259,534.54 and 53,054.94 is: 79,593.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,997.94 : 259,534.54 = 53,054.94 : x
  2. Step 2: Convert to fraction form
    172,997.94/259,534.54 = 53,054.94/x
  3. Step 3: Cross multiply
    172,997.94x = 259,534.54 × 53,054.94
  4. Step 4: Simplify right side
    172,997.94x = 13,769,589,447.63
  5. Step 5: Solve for x
    x = 13,769,589,447.63/172,997.94
  6. Step 6: Final answer
    x = 79,593.95

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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.