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Finding the Fourth Proportional to 57,793.60, 86,544.60 and 46,129.60

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Solution

The fourth proportional to 57,793.60, 86,544.60 and 46,129.60 is: 69,078.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,793.60 : 86,544.60 = 46,129.60 : x
  2. Step 2: Convert to fraction form
    57,793.60/86,544.60 = 46,129.60/x
  3. Step 3: Cross multiply
    57,793.60x = 86,544.60 × 46,129.60
  4. Step 4: Simplify right side
    57,793.60x = 3,992,267,780.16
  5. Step 5: Solve for x
    x = 3,992,267,780.16/57,793.60
  6. Step 6: Final answer
    x = 69,078.03

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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.