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Finding the Fourth Proportional to 103,608.97, 155,460.60 and 50,272.16

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Solution

The fourth proportional to 103,608.97, 155,460.60 and 50,272.16 is: 75,431.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    103,608.97 : 155,460.60 = 50,272.16 : x
  2. Step 2: Convert to fraction form
    103,608.97/155,460.60 = 50,272.16/x
  3. Step 3: Cross multiply
    103,608.97x = 155,460.60 × 50,272.16
  4. Step 4: Simplify right side
    103,608.97x = 7,815,339,379.59
  5. Step 5: Solve for x
    x = 7,815,339,379.59/103,608.97
  6. Step 6: Final answer
    x = 75,431.11

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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.