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Finding the Fourth Proportional to 73,584.40, 110,376.60 and 18,180.40

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Solution

The fourth proportional to 73,584.40, 110,376.60 and 18,180.40 is: 27,270.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,584.40 : 110,376.60 = 18,180.40 : x
  2. Step 2: Convert to fraction form
    73,584.40/110,376.60 = 18,180.40/x
  3. Step 3: Cross multiply
    73,584.40x = 110,376.60 × 18,180.40
  4. Step 4: Simplify right side
    73,584.40x = 2,006,690,738.64
  5. Step 5: Solve for x
    x = 2,006,690,738.64/73,584.40
  6. Step 6: Final answer
    x = 27,270.60

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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.