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Finding the Fourth Proportional to 90,726.75, 125,202.92 and 50,982.75

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Solution

The fourth proportional to 90,726.75, 125,202.92 and 50,982.75 is: 70,356.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,726.75 : 125,202.92 = 50,982.75 : x
  2. Step 2: Convert to fraction form
    90,726.75/125,202.92 = 50,982.75/x
  3. Step 3: Cross multiply
    90,726.75x = 125,202.92 × 50,982.75
  4. Step 4: Simplify right side
    90,726.75x = 6,383,188,914.72
  5. Step 5: Solve for x
    x = 6,383,188,914.72/90,726.75
  6. Step 6: Final answer
    x = 70,356.20

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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.