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Finding the Fourth Proportional to 20,162,442.70, 30,243,664.05 and 20,162,442.70

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Solution

The fourth proportional to 20,162,442.70, 30,243,664.05 and 20,162,442.70 is: 30,243,664.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    20,162,442.70 : 30,243,664.05 = 20,162,442.70 : x
  2. Step 2: Convert to fraction form
    20,162,442.70/30,243,664.05 = 20,162,442.70/x
  3. Step 3: Cross multiply
    20,162,442.70x = 30,243,664.05 × 20,162,442.70
  4. Step 4: Simplify right side
    20,162,442.70x = 609,786,143,446,174.88
  5. Step 5: Solve for x
    x = 609,786,143,446,174.88/20,162,442.70
  6. Step 6: Final answer
    x = 30,243,664.05

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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.