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Finding the Fourth Proportional to 141,083.51, 194,692.68 and 79,829.15

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Solution

The fourth proportional to 141,083.51, 194,692.68 and 79,829.15 is: 110,162.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    141,083.51 : 194,692.68 = 79,829.15 : x
  2. Step 2: Convert to fraction form
    141,083.51/194,692.68 = 79,829.15/x
  3. Step 3: Cross multiply
    141,083.51x = 194,692.68 × 79,829.15
  4. Step 4: Simplify right side
    141,083.51x = 15,542,150,182.16
  5. Step 5: Solve for x
    x = 15,542,150,182.16/141,083.51
  6. Step 6: Final answer
    x = 110,162.77

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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.