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Finding the Third Proportional to 75,664 and 164,428

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Solution

The third proportional to 75,664 and 164,428 is: 357,324.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,664 : 164,428 = 164,428 : x
  2. Step 2: Convert to fraction form
    75,664/164,428 = 164,428/x
  3. Step 3: Cross multiply
    75,664x = 164,428 × 164,428
  4. Step 4: Simplify right side
    75,664x = 27,036,567,184
  5. Step 5: Solve for x
    x = 27,036,567,184/75,664
  6. Step 6: Final answer
    x = 357,324.05

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.