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Finding the Fourth Proportional to 141,197.70, 194,866.29 and 80,756.49

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Solution

The fourth proportional to 141,197.70, 194,866.29 and 80,756.49 is: 111,451.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,197.70 : 194,866.29 = 80,756.49 : x
  2. Step 2: Convert to fraction form
    141,197.70/194,866.29 = 80,756.49/x
  3. Step 3: Cross multiply
    141,197.70x = 194,866.29 × 80,756.49
  4. Step 4: Simplify right side
    141,197.70x = 15,736,717,599.72
  5. Step 5: Solve for x
    x = 15,736,717,599.72/141,197.70
  6. Step 6: Final answer
    x = 111,451.66

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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.