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Finding the Fourth Proportional to 81,593.31, 122,577.59 and 57,958.32

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Solution

The fourth proportional to 81,593.31, 122,577.59 and 57,958.32 is: 87,070.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,593.31 : 122,577.59 = 57,958.32 : x
  2. Step 2: Convert to fraction form
    81,593.31/122,577.59 = 57,958.32/x
  3. Step 3: Cross multiply
    81,593.31x = 122,577.59 × 57,958.32
  4. Step 4: Simplify right side
    81,593.31x = 7,104,391,186.05
  5. Step 5: Solve for x
    x = 7,104,391,186.05/81,593.31
  6. Step 6: Final answer
    x = 87,070.76

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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.