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Finding the Third Proportional to 163,916 and 357,624

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Solution

The third proportional to 163,916 and 357,624 is: 780,246.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,916 : 357,624 = 357,624 : x
  2. Step 2: Convert to fraction form
    163,916/357,624 = 357,624/x
  3. Step 3: Cross multiply
    163,916x = 357,624 × 357,624
  4. Step 4: Simplify right side
    163,916x = 127,894,925,376
  5. Step 5: Solve for x
    x = 127,894,925,376/163,916
  6. Step 6: Final answer
    x = 780,246.74

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Why These Related Problems?

These problems maintain the same ratio (2.18) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.