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Finding the Fourth Proportional to 163,706.60, 225,912.84 and 92,086.58

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Solution

The fourth proportional to 163,706.60, 225,912.84 and 92,086.58 is: 127,078.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,706.60 : 225,912.84 = 92,086.58 : x
  2. Step 2: Convert to fraction form
    163,706.60/225,912.84 = 92,086.58/x
  3. Step 3: Cross multiply
    163,706.60x = 225,912.84 × 92,086.58
  4. Step 4: Simplify right side
    163,706.60x = 20,803,540,813.69
  5. Step 5: Solve for x
    x = 20,803,540,813.69/163,706.60
  6. Step 6: Final answer
    x = 127,078.20

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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.