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Finding the Fourth Proportional to 129,793.54, 194,689.43 and 69,850.22

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Solution

The fourth proportional to 129,793.54, 194,689.43 and 69,850.22 is: 104,774.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,793.54 : 194,689.43 = 69,850.22 : x
  2. Step 2: Convert to fraction form
    129,793.54/194,689.43 = 69,850.22/x
  3. Step 3: Cross multiply
    129,793.54x = 194,689.43 × 69,850.22
  4. Step 4: Simplify right side
    129,793.54x = 13,599,099,167.92
  5. Step 5: Solve for x
    x = 13,599,099,167.92/129,793.54
  6. Step 6: Final answer
    x = 104,774.86

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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.