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Finding the Fourth Proportional to 40,802,811.80, 61,204,217.70 and 10,510,674.80

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Solution

The fourth proportional to 40,802,811.80, 61,204,217.70 and 10,510,674.80 is: 15,766,012.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,802,811.80 : 61,204,217.70 = 10,510,674.80 : x
  2. Step 2: Convert to fraction form
    40,802,811.80/61,204,217.70 = 10,510,674.80/x
  3. Step 3: Cross multiply
    40,802,811.80x = 61,204,217.70 × 10,510,674.80
  4. Step 4: Simplify right side
    40,802,811.80x = 643,297,628,633,104
  5. Step 5: Solve for x
    x = 643,297,628,633,104/40,802,811.80
  6. Step 6: Final answer
    x = 15,766,012.20

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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.