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Finding the Fourth Proportional to 84,191.81, 126,311.39 and 36,811.06

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Solution

The fourth proportional to 84,191.81, 126,311.39 and 36,811.06 is: 55,226.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,191.81 : 126,311.39 = 36,811.06 : x
  2. Step 2: Convert to fraction form
    84,191.81/126,311.39 = 36,811.06/x
  3. Step 3: Cross multiply
    84,191.81x = 126,311.39 × 36,811.06
  4. Step 4: Simplify right side
    84,191.81x = 4,649,655,794.18
  5. Step 5: Solve for x
    x = 4,649,655,794.18/84,191.81
  6. Step 6: Final answer
    x = 55,226.94

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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.