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Finding the Fourth Proportional to 81,756.99, 122,674.37 and 37,380.33

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Solution

The fourth proportional to 81,756.99, 122,674.37 and 37,380.33 is: 56,088.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,756.99 : 122,674.37 = 37,380.33 : x
  2. Step 2: Convert to fraction form
    81,756.99/122,674.37 = 37,380.33/x
  3. Step 3: Cross multiply
    81,756.99x = 122,674.37 × 37,380.33
  4. Step 4: Simplify right side
    81,756.99x = 4,585,608,246.24
  5. Step 5: Solve for x
    x = 4,585,608,246.24/81,756.99
  6. Step 6: Final answer
    x = 56,088.27

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.