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Finding the Fourth Proportional to 199,493.46, 275,051.97 and 127,755.54

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Solution

The fourth proportional to 199,493.46, 275,051.97 and 127,755.54 is: 176,143.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,493.46 : 275,051.97 = 127,755.54 : x
  2. Step 2: Convert to fraction form
    199,493.46/275,051.97 = 127,755.54/x
  3. Step 3: Cross multiply
    199,493.46x = 275,051.97 × 127,755.54
  4. Step 4: Simplify right side
    199,493.46x = 35,139,412,955.41
  5. Step 5: Solve for x
    x = 35,139,412,955.41/199,493.46
  6. Step 6: Final answer
    x = 176,143.18

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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.