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Finding the Fourth Proportional to 140,701.98, 194,187.51 and 83,336.67

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Solution

The fourth proportional to 140,701.98, 194,187.51 and 83,336.67 is: 115,015.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,701.98 : 194,187.51 = 83,336.67 : x
  2. Step 2: Convert to fraction form
    140,701.98/194,187.51 = 83,336.67/x
  3. Step 3: Cross multiply
    140,701.98x = 194,187.51 × 83,336.67
  4. Step 4: Simplify right side
    140,701.98x = 16,182,940,438.99
  5. Step 5: Solve for x
    x = 16,182,940,438.99/140,701.98
  6. Step 6: Final answer
    x = 115,015.73

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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.