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Finding the Fourth Proportional to 40,839,076.80, 57,217,222.80 and 40,839,076.80

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Solution

The fourth proportional to 40,839,076.80, 57,217,222.80 and 40,839,076.80 is: 57,217,222.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,839,076.80 : 57,217,222.80 = 40,839,076.80 : x
  2. Step 2: Convert to fraction form
    40,839,076.80/57,217,222.80 = 40,839,076.80/x
  3. Step 3: Cross multiply
    40,839,076.80x = 57,217,222.80 × 40,839,076.80
  4. Step 4: Simplify right side
    40,839,076.80x = 2,336,698,556,211,910.50
  5. Step 5: Solve for x
    x = 2,336,698,556,211,910.50/40,839,076.80
  6. Step 6: Final answer
    x = 57,217,222.80

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.