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Finding the Fourth Proportional to 91,225.63, 125,891.33 and 50,939.37

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Solution

The fourth proportional to 91,225.63, 125,891.33 and 50,939.37 is: 70,296.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,225.63 : 125,891.33 = 50,939.37 : x
  2. Step 2: Convert to fraction form
    91,225.63/125,891.33 = 50,939.37/x
  3. Step 3: Cross multiply
    91,225.63x = 125,891.33 × 50,939.37
  4. Step 4: Simplify right side
    91,225.63x = 6,412,824,783.97
  5. Step 5: Solve for x
    x = 6,412,824,783.97/91,225.63
  6. Step 6: Final answer
    x = 70,296.30

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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.