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Finding the Fourth Proportional to 140,745.45, 211,132.04 and 40,906.52

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Solution

The fourth proportional to 140,745.45, 211,132.04 and 40,906.52 is: 61,363.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    140,745.45 : 211,132.04 = 40,906.52 : x
  2. Step 2: Convert to fraction form
    140,745.45/211,132.04 = 40,906.52/x
  3. Step 3: Cross multiply
    140,745.45x = 211,132.04 × 40,906.52
  4. Step 4: Simplify right side
    140,745.45x = 8,636,675,756.71
  5. Step 5: Solve for x
    x = 8,636,675,756.71/140,745.45
  6. Step 6: Final answer
    x = 61,363.80

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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.