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Finding the Fourth Proportional to 263,756.70, 395,999.55 and 169,569.90

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Solution

The fourth proportional to 263,756.70, 395,999.55 and 169,569.90 is: 254,589.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,756.70 : 395,999.55 = 169,569.90 : x
  2. Step 2: Convert to fraction form
    263,756.70/395,999.55 = 169,569.90/x
  3. Step 3: Cross multiply
    263,756.70x = 395,999.55 × 169,569.90
  4. Step 4: Simplify right side
    263,756.70x = 67,149,604,093.55
  5. Step 5: Solve for x
    x = 67,149,604,093.55/263,756.70
  6. Step 6: Final answer
    x = 254,589.19

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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.