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Finding the Fourth Proportional to 92,967.75, 139,396.17 and 36,815.91

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Solution

The fourth proportional to 92,967.75, 139,396.17 and 36,815.91 is: 55,201.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,967.75 : 139,396.17 = 36,815.91 : x
  2. Step 2: Convert to fraction form
    92,967.75/139,396.17 = 36,815.91/x
  3. Step 3: Cross multiply
    92,967.75x = 139,396.17 × 36,815.91
  4. Step 4: Simplify right side
    92,967.75x = 5,131,996,849.06
  5. Step 5: Solve for x
    x = 5,131,996,849.06/92,967.75
  6. Step 6: Final answer
    x = 55,201.90

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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.