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Finding the Fourth Proportional to 275,372.60, 413,034.60 and 75,675.20

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Solution

The fourth proportional to 275,372.60, 413,034.60 and 75,675.20 is: 113,506.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    275,372.60 : 413,034.60 = 75,675.20 : x
  2. Step 2: Convert to fraction form
    275,372.60/413,034.60 = 75,675.20/x
  3. Step 3: Cross multiply
    275,372.60x = 413,034.60 × 75,675.20
  4. Step 4: Simplify right side
    275,372.60x = 31,256,475,961.92
  5. Step 5: Solve for x
    x = 31,256,475,961.92/275,372.60
  6. Step 6: Final answer
    x = 113,506.12

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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.