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Finding the Fourth Proportional to 62,991.60, 94,378.05 and 40,793.55

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Solution

The fourth proportional to 62,991.60, 94,378.05 and 40,793.55 is: 61,119.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,991.60 : 94,378.05 = 40,793.55 : x
  2. Step 2: Convert to fraction form
    62,991.60/94,378.05 = 40,793.55/x
  3. Step 3: Cross multiply
    62,991.60x = 94,378.05 × 40,793.55
  4. Step 4: Simplify right side
    62,991.60x = 3,850,015,701.58
  5. Step 5: Solve for x
    x = 3,850,015,701.58/62,991.60
  6. Step 6: Final answer
    x = 61,119.51

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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.