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Finding the Fourth Proportional to 141,255.70, 211,920.44 and 82,034.51

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Solution

The fourth proportional to 141,255.70, 211,920.44 and 82,034.51 is: 123,073.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,255.70 : 211,920.44 = 82,034.51 : x
  2. Step 2: Convert to fraction form
    141,255.70/211,920.44 = 82,034.51/x
  3. Step 3: Cross multiply
    141,255.70x = 211,920.44 × 82,034.51
  4. Step 4: Simplify right side
    141,255.70x = 17,384,787,984.61
  5. Step 5: Solve for x
    x = 17,384,787,984.61/141,255.70
  6. Step 6: Final answer
    x = 123,073.18

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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.