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Finding the Fourth Proportional to 263,615.95, 395,157.66 and 103,804.03

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Solution

The fourth proportional to 263,615.95, 395,157.66 and 103,804.03 is: 155,601.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    263,615.95 : 395,157.66 = 103,804.03 : x
  2. Step 2: Convert to fraction form
    263,615.95/395,157.66 = 103,804.03/x
  3. Step 3: Cross multiply
    263,615.95x = 395,157.66 × 103,804.03
  4. Step 4: Simplify right side
    263,615.95x = 41,018,957,698.05
  5. Step 5: Solve for x
    x = 41,018,957,698.05/263,615.95
  6. Step 6: Final answer
    x = 155,601.20

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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.