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Finding the Fourth Proportional to 163,722.80, 225,935.31 and 92,102.80

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Solution

The fourth proportional to 163,722.80, 225,935.31 and 92,102.80 is: 127,100.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,722.80 : 225,935.31 = 92,102.80 : x
  2. Step 2: Convert to fraction form
    163,722.80/225,935.31 = 92,102.80/x
  3. Step 3: Cross multiply
    163,722.80x = 225,935.31 × 92,102.80
  4. Step 4: Simplify right side
    163,722.80x = 20,809,274,669.87
  5. Step 5: Solve for x
    x = 20,809,274,669.87/163,722.80
  6. Step 6: Final answer
    x = 127,100.65

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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.