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Finding the Fourth Proportional to 163,698.57, 225,901.80 and 92,078.55

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Solution

The fourth proportional to 163,698.57, 225,901.80 and 92,078.55 is: 127,067.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,698.57 : 225,901.80 = 92,078.55 : x
  2. Step 2: Convert to fraction form
    163,698.57/225,901.80 = 92,078.55/x
  3. Step 3: Cross multiply
    163,698.57x = 225,901.80 × 92,078.55
  4. Step 4: Simplify right side
    163,698.57x = 20,800,710,186.39
  5. Step 5: Solve for x
    x = 20,800,710,186.39/163,698.57
  6. Step 6: Final answer
    x = 127,067.15

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1.5x scale

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.