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Finding the Fourth Proportional to 18,137,314.80, 27,205,972.20 and 18,137,314.80

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Solution

The fourth proportional to 18,137,314.80, 27,205,972.20 and 18,137,314.80 is: 27,205,972.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,137,314.80 : 27,205,972.20 = 18,137,314.80 : x
  2. Step 2: Convert to fraction form
    18,137,314.80/27,205,972.20 = 18,137,314.80/x
  3. Step 3: Cross multiply
    18,137,314.80x = 27,205,972.20 × 18,137,314.80
  4. Step 4: Simplify right side
    18,137,314.80x = 493,443,282,231,448.56
  5. Step 5: Solve for x
    x = 493,443,282,231,448.56/18,137,314.80
  6. Step 6: Final answer
    x = 27,205,972.20

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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.