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Finding the Fourth Proportional to 163,427.98, 225,536.43 and 91,806.43

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Solution

The fourth proportional to 163,427.98, 225,536.43 and 91,806.43 is: 126,696.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,427.98 : 225,536.43 = 91,806.43 : x
  2. Step 2: Convert to fraction form
    163,427.98/225,536.43 = 91,806.43/x
  3. Step 3: Cross multiply
    163,427.98x = 225,536.43 × 91,806.43
  4. Step 4: Simplify right side
    163,427.98x = 20,705,694,473.24
  5. Step 5: Solve for x
    x = 20,705,694,473.24/163,427.98
  6. Step 6: Final answer
    x = 126,696.14

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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.