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Finding the Third Proportional to 117,065 and 256,432

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Solution

The third proportional to 117,065 and 256,432 is: 561,716.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    117,065 : 256,432 = 256,432 : x
  2. Step 2: Convert to fraction form
    117,065/256,432 = 256,432/x
  3. Step 3: Cross multiply
    117,065x = 256,432 × 256,432
  4. Step 4: Simplify right side
    117,065x = 65,757,370,624
  5. Step 5: Solve for x
    x = 65,757,370,624/117,065
  6. Step 6: Final answer
    x = 561,716.74

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.