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Finding the Fourth Proportional to 45,412,912.37, 68,119,368.55 and 45,412,912.37

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Solution

The fourth proportional to 45,412,912.37, 68,119,368.55 and 45,412,912.37 is: 68,119,368.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,412,912.37 : 68,119,368.55 = 45,412,912.37 : x
  2. Step 2: Convert to fraction form
    45,412,912.37/68,119,368.55 = 45,412,912.37/x
  3. Step 3: Cross multiply
    45,412,912.37x = 68,119,368.55 × 45,412,912.37
  4. Step 4: Simplify right side
    45,412,912.37x = 3,093,498,914,320,287
  5. Step 5: Solve for x
    x = 3,093,498,914,320,287/45,412,912.37
  6. Step 6: Final answer
    x = 68,119,368.55

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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.