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Finding the Third Proportional to 66,432 and 114,624

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Solution

The third proportional to 66,432 and 114,624 is: 197,776.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,432 : 114,624 = 114,624 : x
  2. Step 2: Convert to fraction form
    66,432/114,624 = 114,624/x
  3. Step 3: Cross multiply
    66,432x = 114,624 × 114,624
  4. Step 4: Simplify right side
    66,432x = 13,138,661,376
  5. Step 5: Solve for x
    x = 13,138,661,376/66,432
  6. Step 6: Final answer
    x = 197,776.09

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Why These Related Problems?

These problems maintain the same ratio (1.73) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.