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Finding the Third Proportional to 59,273 and 128,722

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Solution

The third proportional to 59,273 and 128,722 is: 279,543.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,273 : 128,722 = 128,722 : x
  2. Step 2: Convert to fraction form
    59,273/128,722 = 128,722/x
  3. Step 3: Cross multiply
    59,273x = 128,722 × 128,722
  4. Step 4: Simplify right side
    59,273x = 16,569,353,284
  5. Step 5: Solve for x
    x = 16,569,353,284/59,273
  6. Step 6: Final answer
    x = 279,543.02

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Why These Related Problems?

These problems maintain the same ratio (2.17) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.