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Finding the Fourth Proportional to 141,090.93, 194,695.38 and 80,664.12

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Solution

The fourth proportional to 141,090.93, 194,695.38 and 80,664.12 is: 111,310.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,090.93 : 194,695.38 = 80,664.12 : x
  2. Step 2: Convert to fraction form
    141,090.93/194,695.38 = 80,664.12/x
  3. Step 3: Cross multiply
    141,090.93x = 194,695.38 × 80,664.12
  4. Step 4: Simplify right side
    141,090.93x = 15,704,931,780.84
  5. Step 5: Solve for x
    x = 15,704,931,780.84/141,090.93
  6. Step 6: Final answer
    x = 111,310.71

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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.