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Finding the Fourth Proportional to 73,984.40, 110,903.70 and 36,513.80

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Solution

The fourth proportional to 73,984.40, 110,903.70 and 36,513.80 is: 54,734.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,984.40 : 110,903.70 = 36,513.80 : x
  2. Step 2: Convert to fraction form
    73,984.40/110,903.70 = 36,513.80/x
  3. Step 3: Cross multiply
    73,984.40x = 110,903.70 × 36,513.80
  4. Step 4: Simplify right side
    73,984.40x = 4,049,515,521.06
  5. Step 5: Solve for x
    x = 4,049,515,521.06/73,984.40
  6. Step 6: Final answer
    x = 54,734.72

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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.