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Finding the Fourth Proportional to 141,047.36, 194,645.36 and 80,619.30

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Solution

The fourth proportional to 141,047.36, 194,645.36 and 80,619.30 is: 111,254.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,047.36 : 194,645.36 = 80,619.30 : x
  2. Step 2: Convert to fraction form
    141,047.36/194,645.36 = 80,619.30/x
  3. Step 3: Cross multiply
    141,047.36x = 194,645.36 × 80,619.30
  4. Step 4: Simplify right side
    141,047.36x = 15,692,172,268.35
  5. Step 5: Solve for x
    x = 15,692,172,268.35/141,047.36
  6. Step 6: Final answer
    x = 111,254.63

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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.