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Finding the Third Proportional to 75,815.63 and 112,245

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Solution

The third proportional to 75,815.63 and 112,245 is: 166,178.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,815.63 : 112,245 = 112,245 : x
  2. Step 2: Convert to fraction form
    75,815.63/112,245 = 112,245/x
  3. Step 3: Cross multiply
    75,815.63x = 112,245 × 112,245
  4. Step 4: Simplify right side
    75,815.63x = 12,598,940,025
  5. Step 5: Solve for x
    x = 12,598,940,025/75,815.63
  6. Step 6: Final answer
    x = 166,178.67

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.