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Finding the Fourth Proportional to 75,761.87, 104,563.69 and 45,577.69

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Solution

The fourth proportional to 75,761.87, 104,563.69 and 45,577.69 is: 62,904.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,761.87 : 104,563.69 = 45,577.69 : x
  2. Step 2: Convert to fraction form
    75,761.87/104,563.69 = 45,577.69/x
  3. Step 3: Cross multiply
    75,761.87x = 104,563.69 × 45,577.69
  4. Step 4: Simplify right side
    75,761.87x = 4,765,771,072.72
  5. Step 5: Solve for x
    x = 4,765,771,072.72/75,761.87
  6. Step 6: Final answer
    x = 62,904.62

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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.