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Finding the Fourth Proportional to 140,745.83, 211,132.60 and 40,906.89

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Solution

The fourth proportional to 140,745.83, 211,132.60 and 40,906.89 is: 61,364.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,745.83 : 211,132.60 = 40,906.89 : x
  2. Step 2: Convert to fraction form
    140,745.83/211,132.60 = 40,906.89/x
  3. Step 3: Cross multiply
    140,745.83x = 211,132.60 × 40,906.89
  4. Step 4: Simplify right side
    140,745.83x = 8,636,777,941.35
  5. Step 5: Solve for x
    x = 8,636,777,941.35/140,745.83
  6. Step 6: Final answer
    x = 61,364.36

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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.