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Finding the Fourth Proportional to 69,907.48, 104,773.65 and 55,057.75

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Solution

The fourth proportional to 69,907.48, 104,773.65 and 55,057.75 is: 82,517.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,907.48 : 104,773.65 = 55,057.75 : x
  2. Step 2: Convert to fraction form
    69,907.48/104,773.65 = 55,057.75/x
  3. Step 3: Cross multiply
    69,907.48x = 104,773.65 × 55,057.75
  4. Step 4: Simplify right side
    69,907.48x = 5,768,601,428.29
  5. Step 5: Solve for x
    x = 5,768,601,428.29/69,907.48
  6. Step 6: Final answer
    x = 82,517.66

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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.