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Finding the Fourth Proportional to 262,605.38, 361,889.78 and 190,871.78

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Solution

The fourth proportional to 262,605.38, 361,889.78 and 190,871.78 is: 263,035.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,605.38 : 361,889.78 = 190,871.78 : x
  2. Step 2: Convert to fraction form
    262,605.38/361,889.78 = 190,871.78/x
  3. Step 3: Cross multiply
    262,605.38x = 361,889.78 × 190,871.78
  4. Step 4: Simplify right side
    262,605.38x = 69,074,546,472.41
  5. Step 5: Solve for x
    x = 69,074,546,472.41/262,605.38
  6. Step 6: Final answer
    x = 263,035.53

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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.