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Finding the Fourth Proportional to 80,885.40, 121,299.30 and 36,533.40

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Solution

The fourth proportional to 80,885.40, 121,299.30 and 36,533.40 is: 54,787.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    80,885.40 : 121,299.30 = 36,533.40 : x
  2. Step 2: Convert to fraction form
    80,885.40/121,299.30 = 36,533.40/x
  3. Step 3: Cross multiply
    80,885.40x = 121,299.30 × 36,533.40
  4. Step 4: Simplify right side
    80,885.40x = 4,431,475,846.62
  5. Step 5: Solve for x
    x = 4,431,475,846.62/80,885.40
  6. Step 6: Final answer
    x = 54,787.09

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These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.