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Finding the Fourth Proportional to 207,571.01, 311,356.80 and 57,811.73

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Solution

The fourth proportional to 207,571.01, 311,356.80 and 57,811.73 is: 86,717.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,571.01 : 311,356.80 = 57,811.73 : x
  2. Step 2: Convert to fraction form
    207,571.01/311,356.80 = 57,811.73/x
  3. Step 3: Cross multiply
    207,571.01x = 311,356.80 × 57,811.73
  4. Step 4: Simplify right side
    207,571.01x = 18,000,073,698.48
  5. Step 5: Solve for x
    x = 18,000,073,698.48/207,571.01
  6. Step 6: Final answer
    x = 86,717.67

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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.