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Finding the Third Proportional to 101,428 and 158,286

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Solution

The third proportional to 101,428 and 158,286 is: 247,017.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    101,428 : 158,286 = 158,286 : x
  2. Step 2: Convert to fraction form
    101,428/158,286 = 158,286/x
  3. Step 3: Cross multiply
    101,428x = 158,286 × 158,286
  4. Step 4: Simplify right side
    101,428x = 25,054,457,796
  5. Step 5: Solve for x
    x = 25,054,457,796/101,428
  6. Step 6: Final answer
    x = 247,017.17

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.