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Finding the Third Proportional to 78,532 and 125,082

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Solution

The third proportional to 78,532 and 125,082 is: 199,224.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,532 : 125,082 = 125,082 : x
  2. Step 2: Convert to fraction form
    78,532/125,082 = 125,082/x
  3. Step 3: Cross multiply
    78,532x = 125,082 × 125,082
  4. Step 4: Simplify right side
    78,532x = 15,645,506,724
  5. Step 5: Solve for x
    x = 15,645,506,724/78,532
  6. Step 6: Final answer
    x = 199,224.61

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Why These Related Problems?

These problems maintain the same ratio (1.59) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.