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Finding the Fourth Proportional to 129,373.88, 194,060.81 and 35,879.63

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Solution

The fourth proportional to 129,373.88, 194,060.81 and 35,879.63 is: 53,819.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    129,373.88 : 194,060.81 = 35,879.63 : x
  2. Step 2: Convert to fraction form
    129,373.88/194,060.81 = 35,879.63/x
  3. Step 3: Cross multiply
    129,373.88x = 194,060.81 × 35,879.63
  4. Step 4: Simplify right side
    129,373.88x = 6,962,829,179.70
  5. Step 5: Solve for x
    x = 6,962,829,179.70/129,373.88
  6. Step 6: Final answer
    x = 53,819.44

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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.