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Finding the Fourth Proportional to 81,770.58, 122,411.43 and 50,080.86

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Solution

The fourth proportional to 81,770.58, 122,411.43 and 50,080.86 is: 74,971.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,770.58 : 122,411.43 = 50,080.86 : x
  2. Step 2: Convert to fraction form
    81,770.58/122,411.43 = 50,080.86/x
  3. Step 3: Cross multiply
    81,770.58x = 122,411.43 × 50,080.86
  4. Step 4: Simplify right side
    81,770.58x = 6,130,469,688.23
  5. Step 5: Solve for x
    x = 6,130,469,688.23/81,770.58
  6. Step 6: Final answer
    x = 74,971.58

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.