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Finding the Fourth Proportional to 223,548.39, 308,495.25 and 126,770.54

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Solution

The fourth proportional to 223,548.39, 308,495.25 and 126,770.54 is: 174,942.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    223,548.39 : 308,495.25 = 126,770.54 : x
  2. Step 2: Convert to fraction form
    223,548.39/308,495.25 = 126,770.54/x
  3. Step 3: Cross multiply
    223,548.39x = 308,495.25 × 126,770.54
  4. Step 4: Simplify right side
    223,548.39x = 39,108,107,887.46
  5. Step 5: Solve for x
    x = 39,108,107,887.46/223,548.39
  6. Step 6: Final answer
    x = 174,942.47

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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.