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Finding the Fourth Proportional to 143,251,161.90, 214,876,742.85 and 143,251,161.90

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Solution

The fourth proportional to 143,251,161.90, 214,876,742.85 and 143,251,161.90 is: 214,876,742.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    143,251,161.90 : 214,876,742.85 = 143,251,161.90 : x
  2. Step 2: Convert to fraction form
    143,251,161.90/214,876,742.85 = 143,251,161.90/x
  3. Step 3: Cross multiply
    143,251,161.90x = 214,876,742.85 × 143,251,161.90
  4. Step 4: Simplify right side
    143,251,161.90x = 30,781,343,078,550,016
  5. Step 5: Solve for x
    x = 30,781,343,078,550,016/143,251,161.90
  6. Step 6: Final answer
    x = 214,876,742.85

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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.