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Finding the Third Proportional to 115,956 and 165,428

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Solution

The third proportional to 115,956 and 165,428 is: 236,006.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    115,956 : 165,428 = 165,428 : x
  2. Step 2: Convert to fraction form
    115,956/165,428 = 165,428/x
  3. Step 3: Cross multiply
    115,956x = 165,428 × 165,428
  4. Step 4: Simplify right side
    115,956x = 27,366,423,184
  5. Step 5: Solve for x
    x = 27,366,423,184/115,956
  6. Step 6: Final answer
    x = 236,006.96

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.