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Finding the Third Proportional to 55,209 and 86,094

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Solution

The third proportional to 55,209 and 86,094 is: 134,256.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,209 : 86,094 = 86,094 : x
  2. Step 2: Convert to fraction form
    55,209/86,094 = 86,094/x
  3. Step 3: Cross multiply
    55,209x = 86,094 × 86,094
  4. Step 4: Simplify right side
    55,209x = 7,412,176,836
  5. Step 5: Solve for x
    x = 7,412,176,836/55,209
  6. Step 6: Final answer
    x = 134,256.68

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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.