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Finding the Fourth Proportional to 199,628.82, 275,428.08 and 127,883.88

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Solution

The fourth proportional to 199,628.82, 275,428.08 and 127,883.88 is: 176,441.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    199,628.82 : 275,428.08 = 127,883.88 : x
  2. Step 2: Convert to fraction form
    199,628.82/275,428.08 = 127,883.88/x
  3. Step 3: Cross multiply
    199,628.82x = 275,428.08 × 127,883.88
  4. Step 4: Simplify right side
    199,628.82x = 35,222,811,531.35
  5. Step 5: Solve for x
    x = 35,222,811,531.35/199,628.82
  6. Step 6: Final answer
    x = 176,441.52

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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.