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Finding the Fourth Proportional to 115,793.75, 173,690.63 and 28,241.75

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Solution

The fourth proportional to 115,793.75, 173,690.63 and 28,241.75 is: 42,362.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,793.75 : 173,690.63 = 28,241.75 : x
  2. Step 2: Convert to fraction form
    115,793.75/173,690.63 = 28,241.75/x
  3. Step 3: Cross multiply
    115,793.75x = 173,690.63 × 28,241.75
  4. Step 4: Simplify right side
    115,793.75x = 4,905,327,349.80
  5. Step 5: Solve for x
    x = 4,905,327,349.80/115,793.75
  6. Step 6: Final answer
    x = 42,362.63

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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.