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Finding the Fourth Proportional to 99,892.34, 149,788.96 and 36,709.92

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Solution

The fourth proportional to 99,892.34, 149,788.96 and 36,709.92 is: 55,046.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,892.34 : 149,788.96 = 36,709.92 : x
  2. Step 2: Convert to fraction form
    99,892.34/149,788.96 = 36,709.92/x
  3. Step 3: Cross multiply
    99,892.34x = 149,788.96 × 36,709.92
  4. Step 4: Simplify right side
    99,892.34x = 5,498,740,738.48
  5. Step 5: Solve for x
    x = 5,498,740,738.48/99,892.34
  6. Step 6: Final answer
    x = 55,046.67

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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.