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Finding the Fourth Proportional to 100,797.50, 139,093.37 and 59,959.37

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Solution

The fourth proportional to 100,797.50, 139,093.37 and 59,959.37 is: 82,739.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,797.50 : 139,093.37 = 59,959.37 : x
  2. Step 2: Convert to fraction form
    100,797.50/139,093.37 = 59,959.37/x
  3. Step 3: Cross multiply
    100,797.50x = 139,093.37 × 59,959.37
  4. Step 4: Simplify right side
    100,797.50x = 8,339,951,482.39
  5. Step 5: Solve for x
    x = 8,339,951,482.39/100,797.50
  6. Step 6: Final answer
    x = 82,739.67

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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.