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Finding the Fourth Proportional to 45,807.90, 68,651.73 and 33,199.98

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Solution

The fourth proportional to 45,807.90, 68,651.73 and 33,199.98 is: 49,756.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,807.90 : 68,651.73 = 33,199.98 : x
  2. Step 2: Convert to fraction form
    45,807.90/68,651.73 = 33,199.98/x
  3. Step 3: Cross multiply
    45,807.90x = 68,651.73 × 33,199.98
  4. Step 4: Simplify right side
    45,807.90x = 2,279,236,062.97
  5. Step 5: Solve for x
    x = 2,279,236,062.97/45,807.90
  6. Step 6: Final answer
    x = 49,756.40

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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.