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Finding the Fourth Proportional to 90,797.01, 125,300.84 and 49,961.67

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Solution

The fourth proportional to 90,797.01, 125,300.84 and 49,961.67 is: 68,947.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    90,797.01 : 125,300.84 = 49,961.67 : x
  2. Step 2: Convert to fraction form
    90,797.01/125,300.84 = 49,961.67/x
  3. Step 3: Cross multiply
    90,797.01x = 125,300.84 × 49,961.67
  4. Step 4: Simplify right side
    90,797.01x = 6,260,239,218.80
  5. Step 5: Solve for x
    x = 6,260,239,218.80/90,797.01
  6. Step 6: Final answer
    x = 68,947.64

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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.