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Finding the Fourth Proportional to 92,503.94, 138,752.85 and 39,181.67

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Solution

The fourth proportional to 92,503.94, 138,752.85 and 39,181.67 is: 58,771.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,503.94 : 138,752.85 = 39,181.67 : x
  2. Step 2: Convert to fraction form
    92,503.94/138,752.85 = 39,181.67/x
  3. Step 3: Cross multiply
    92,503.94x = 138,752.85 × 39,181.67
  4. Step 4: Simplify right side
    92,503.94x = 5,436,568,380.26
  5. Step 5: Solve for x
    x = 5,436,568,380.26/92,503.94
  6. Step 6: Final answer
    x = 58,771.21

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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.