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Finding the Fourth Proportional to 91,081.76, 125,695.78 and 50,797.22

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Solution

The fourth proportional to 91,081.76, 125,695.78 and 50,797.22 is: 70,101.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    91,081.76 : 125,695.78 = 50,797.22 : x
  2. Step 2: Convert to fraction form
    91,081.76/125,695.78 = 50,797.22/x
  3. Step 3: Cross multiply
    91,081.76x = 125,695.78 × 50,797.22
  4. Step 4: Simplify right side
    91,081.76x = 6,384,996,189.73
  5. Step 5: Solve for x
    x = 6,384,996,189.73/91,081.76
  6. Step 6: Final answer
    x = 70,101.81

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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.