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Finding the Fourth Proportional to 99,958.46, 149,821.11 and 36,730.94

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Solution

The fourth proportional to 99,958.46, 149,821.11 and 36,730.94 is: 55,053.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,958.46 : 149,821.11 = 36,730.94 : x
  2. Step 2: Convert to fraction form
    99,958.46/149,821.11 = 36,730.94/x
  3. Step 3: Cross multiply
    99,958.46x = 149,821.11 × 36,730.94
  4. Step 4: Simplify right side
    99,958.46x = 5,503,069,453.04
  5. Step 5: Solve for x
    x = 5,503,069,453.04/99,958.46
  6. Step 6: Final answer
    x = 55,053.57

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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.