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Finding the Fourth Proportional to 84,692.22, 116,581.90 and 73,201.89

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Solution

The fourth proportional to 84,692.22, 116,581.90 and 73,201.89 is: 100,765.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    84,692.22 : 116,581.90 = 73,201.89 : x
  2. Step 2: Convert to fraction form
    84,692.22/116,581.90 = 73,201.89/x
  3. Step 3: Cross multiply
    84,692.22x = 116,581.90 × 73,201.89
  4. Step 4: Simplify right side
    84,692.22x = 8,534,015,419.79
  5. Step 5: Solve for x
    x = 8,534,015,419.79/84,692.22
  6. Step 6: Final answer
    x = 100,765.05

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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.