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Finding the Fourth Proportional to 45,913.20, 68,740.20 and 44,617.20

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Solution

The fourth proportional to 45,913.20, 68,740.20 and 44,617.20 is: 66,799.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,913.20 : 68,740.20 = 44,617.20 : x
  2. Step 2: Convert to fraction form
    45,913.20/68,740.20 = 44,617.20/x
  3. Step 3: Cross multiply
    45,913.20x = 68,740.20 × 44,617.20
  4. Step 4: Simplify right side
    45,913.20x = 3,066,995,251.44
  5. Step 5: Solve for x
    x = 3,066,995,251.44/45,913.20
  6. Step 6: Final answer
    x = 66,799.86

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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.