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Finding the Fourth Proportional to 73,962.90, 110,960.55 and 36,540.90

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Solution

The fourth proportional to 73,962.90, 110,960.55 and 36,540.90 is: 54,819.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,962.90 : 110,960.55 = 36,540.90 : x
  2. Step 2: Convert to fraction form
    73,962.90/110,960.55 = 36,540.90/x
  3. Step 3: Cross multiply
    73,962.90x = 110,960.55 × 36,540.90
  4. Step 4: Simplify right side
    73,962.90x = 4,054,598,361.50
  5. Step 5: Solve for x
    x = 4,054,598,361.50/73,962.90
  6. Step 6: Final answer
    x = 54,819.35

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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.