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Finding the Fourth Proportional to 95,796, 143,821.17 and 81,845.64

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Solution

The fourth proportional to 95,796, 143,821.17 and 81,845.64 is: 122,877.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    95,796 : 143,821.17 = 81,845.64 : x
  2. Step 2: Convert to fraction form
    95,796/143,821.17 = 81,845.64/x
  3. Step 3: Cross multiply
    95,796x = 143,821.17 × 81,845.64
  4. Step 4: Simplify right side
    95,796x = 11,771,135,704.20
  5. Step 5: Solve for x
    x = 11,771,135,704.20/95,796
  6. Step 6: Final answer
    x = 122,877.11

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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.