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Finding the Fourth Proportional to 82,041.73, 122,980.84 and 34,668.75

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Solution

The fourth proportional to 82,041.73, 122,980.84 and 34,668.75 is: 51,968.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    82,041.73 : 122,980.84 = 34,668.75 : x
  2. Step 2: Convert to fraction form
    82,041.73/122,980.84 = 34,668.75/x
  3. Step 3: Cross multiply
    82,041.73x = 122,980.84 × 34,668.75
  4. Step 4: Simplify right side
    82,041.73x = 4,263,591,996.75
  5. Step 5: Solve for x
    x = 4,263,591,996.75/82,041.73
  6. Step 6: Final answer
    x = 51,968.58

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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.