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Finding the Third Proportional to 99,030.75 and 213,843

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Solution

The third proportional to 99,030.75 and 213,843 is: 461,763.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,030.75 : 213,843 = 213,843 : x
  2. Step 2: Convert to fraction form
    99,030.75/213,843 = 213,843/x
  3. Step 3: Cross multiply
    99,030.75x = 213,843 × 213,843
  4. Step 4: Simplify right side
    99,030.75x = 45,728,828,649
  5. Step 5: Solve for x
    x = 45,728,828,649/99,030.75
  6. Step 6: Final answer
    x = 461,763.93

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Why These Related Problems?

These problems maintain the same ratio (2.16) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.