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Finding the Fourth Proportional to 50,729.60, 76,180.80 and 36,041.60

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Solution

The fourth proportional to 50,729.60, 76,180.80 and 36,041.60 is: 54,123.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,729.60 : 76,180.80 = 36,041.60 : x
  2. Step 2: Convert to fraction form
    50,729.60/76,180.80 = 36,041.60/x
  3. Step 3: Cross multiply
    50,729.60x = 76,180.80 × 36,041.60
  4. Step 4: Simplify right side
    50,729.60x = 2,745,677,921.28
  5. Step 5: Solve for x
    x = 2,745,677,921.28/50,729.60
  6. Step 6: Final answer
    x = 54,123.78

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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.