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Finding the Third Proportional to 76,392 and 164,547

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Solution

The third proportional to 76,392 and 164,547 is: 354,431.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,392 : 164,547 = 164,547 : x
  2. Step 2: Convert to fraction form
    76,392/164,547 = 164,547/x
  3. Step 3: Cross multiply
    76,392x = 164,547 × 164,547
  4. Step 4: Simplify right side
    76,392x = 27,075,715,209
  5. Step 5: Solve for x
    x = 27,075,715,209/76,392
  6. Step 6: Final answer
    x = 354,431.29

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Why These Related Problems?

These problems maintain the same ratio (2.15) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.