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Finding the Third Proportional to 45,429.75 and 99,813.75

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Solution

The third proportional to 45,429.75 and 99,813.75 is: 219,300.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,429.75 : 99,813.75 = 99,813.75 : x
  2. Step 2: Convert to fraction form
    45,429.75/99,813.75 = 99,813.75/x
  3. Step 3: Cross multiply
    45,429.75x = 99,813.75 × 99,813.75
  4. Step 4: Simplify right side
    45,429.75x = 9,962,784,689.06
  5. Step 5: Solve for x
    x = 9,962,784,689.06/45,429.75
  6. Step 6: Final answer
    x = 219,300.89

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.