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Finding the Third Proportional to 85,230 and 127,359

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Solution

The third proportional to 85,230 and 127,359 is: 190,312.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    85,230 : 127,359 = 127,359 : x
  2. Step 2: Convert to fraction form
    85,230/127,359 = 127,359/x
  3. Step 3: Cross multiply
    85,230x = 127,359 × 127,359
  4. Step 4: Simplify right side
    85,230x = 16,220,314,881
  5. Step 5: Solve for x
    x = 16,220,314,881/85,230
  6. Step 6: Final answer
    x = 190,312.27

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.