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Finding the Fourth Proportional to 171,561.98, 236,845.14 and 133,235.54

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Solution

The fourth proportional to 171,561.98, 236,845.14 and 133,235.54 is: 183,934.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    171,561.98 : 236,845.14 = 133,235.54 : x
  2. Step 2: Convert to fraction form
    171,561.98/236,845.14 = 133,235.54/x
  3. Step 3: Cross multiply
    171,561.98x = 236,845.14 × 133,235.54
  4. Step 4: Simplify right side
    171,561.98x = 31,556,190,124.28
  5. Step 5: Solve for x
    x = 31,556,190,124.28/171,561.98
  6. Step 6: Final answer
    x = 183,934.63

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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.