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Finding the Fourth Proportional to 163,698.66, 225,901.79 and 92,078.66

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Solution

The fourth proportional to 163,698.66, 225,901.79 and 92,078.66 is: 127,067.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,698.66 : 225,901.79 = 92,078.66 : x
  2. Step 2: Convert to fraction form
    163,698.66/225,901.79 = 92,078.66/x
  3. Step 3: Cross multiply
    163,698.66x = 225,901.79 × 92,078.66
  4. Step 4: Simplify right side
    163,698.66x = 20,800,732,524.90
  5. Step 5: Solve for x
    x = 20,800,732,524.90/163,698.66
  6. Step 6: Final answer
    x = 127,067.21

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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.