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Finding the Fourth Proportional to 100,603,348.20, 150,905,022.30 and 100,603,348.20

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Solution

The fourth proportional to 100,603,348.20, 150,905,022.30 and 100,603,348.20 is: 150,905,022.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    100,603,348.20 : 150,905,022.30 = 100,603,348.20 : x
  2. Step 2: Convert to fraction form
    100,603,348.20/150,905,022.30 = 100,603,348.20/x
  3. Step 3: Cross multiply
    100,603,348.20x = 150,905,022.30 × 100,603,348.20
  4. Step 4: Simplify right side
    100,603,348.20x = 15,181,550,503,575,666
  5. Step 5: Solve for x
    x = 15,181,550,503,575,666/100,603,348.20
  6. Step 6: Final answer
    x = 150,905,022.30

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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.