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Finding the Third Proportional to 99,038 and 216,790

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Solution

The third proportional to 99,038 and 216,790 is: 474,544.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,038 : 216,790 = 216,790 : x
  2. Step 2: Convert to fraction form
    99,038/216,790 = 216,790/x
  3. Step 3: Cross multiply
    99,038x = 216,790 × 216,790
  4. Step 4: Simplify right side
    99,038x = 46,997,904,100
  5. Step 5: Solve for x
    x = 46,997,904,100/99,038
  6. Step 6: Final answer
    x = 474,544.16

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.