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Finding the Third Proportional to 106,390 and 157,531

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Solution

The third proportional to 106,390 and 157,531 is: 233,255.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    106,390 : 157,531 = 157,531 : x
  2. Step 2: Convert to fraction form
    106,390/157,531 = 157,531/x
  3. Step 3: Cross multiply
    106,390x = 157,531 × 157,531
  4. Step 4: Simplify right side
    106,390x = 24,816,015,961
  5. Step 5: Solve for x
    x = 24,816,015,961/106,390
  6. Step 6: Final answer
    x = 233,255.16

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Why These Related Problems?

These problems maintain the same ratio (1.48) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.