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Finding the Fourth Proportional to 67,303.50, 100,984.40 and 36,102.30

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Solution

The fourth proportional to 67,303.50, 100,984.40 and 36,102.30 is: 54,169.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,303.50 : 100,984.40 = 36,102.30 : x
  2. Step 2: Convert to fraction form
    67,303.50/100,984.40 = 36,102.30/x
  3. Step 3: Cross multiply
    67,303.50x = 100,984.40 × 36,102.30
  4. Step 4: Simplify right side
    67,303.50x = 3,645,769,104.12
  5. Step 5: Solve for x
    x = 3,645,769,104.12/67,303.50
  6. Step 6: Final answer
    x = 54,169.09

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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.