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Finding the Fourth Proportional to 140,867,998.60, 211,301,997.90 and 140,867,998.60

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Solution

The fourth proportional to 140,867,998.60, 211,301,997.90 and 140,867,998.60 is: 211,301,997.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,867,998.60 : 211,301,997.90 = 140,867,998.60 : x
  2. Step 2: Convert to fraction form
    140,867,998.60/211,301,997.90 = 140,867,998.60/x
  3. Step 3: Cross multiply
    140,867,998.60x = 211,301,997.90 × 140,867,998.60
  4. Step 4: Simplify right side
    140,867,998.60x = 29,765,689,544,354,404
  5. Step 5: Solve for x
    x = 29,765,689,544,354,404/140,867,998.60
  6. Step 6: Final answer
    x = 211,301,997.90

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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.