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Finding the Fourth Proportional to 171,474, 236,630.93 and 94,991.40

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Solution

The fourth proportional to 171,474, 236,630.93 and 94,991.40 is: 131,086.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,474 : 236,630.93 = 94,991.40 : x
  2. Step 2: Convert to fraction form
    171,474/236,630.93 = 94,991.40/x
  3. Step 3: Cross multiply
    171,474x = 236,630.93 × 94,991.40
  4. Step 4: Simplify right side
    171,474x = 22,477,902,849.05
  5. Step 5: Solve for x
    x = 22,477,902,849.05/171,474
  6. Step 6: Final answer
    x = 131,086.36

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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.