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Finding the Third Proportional to 92,428 and 132,172

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Solution

The third proportional to 92,428 and 132,172 is: 189,005.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,428 : 132,172 = 132,172 : x
  2. Step 2: Convert to fraction form
    92,428/132,172 = 132,172/x
  3. Step 3: Cross multiply
    92,428x = 132,172 × 132,172
  4. Step 4: Simplify right side
    92,428x = 17,469,437,584
  5. Step 5: Solve for x
    x = 17,469,437,584/92,428
  6. Step 6: Final answer
    x = 189,005.90

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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.