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Finding the Third Proportional to 127,988 and 264,154

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Solution

The third proportional to 127,988 and 264,154 is: 545,186.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    127,988 : 264,154 = 264,154 : x
  2. Step 2: Convert to fraction form
    127,988/264,154 = 264,154/x
  3. Step 3: Cross multiply
    127,988x = 264,154 × 264,154
  4. Step 4: Simplify right side
    127,988x = 69,777,335,716
  5. Step 5: Solve for x
    x = 69,777,335,716/127,988
  6. Step 6: Final answer
    x = 545,186.55

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Why These Related Problems?

These problems maintain the same ratio (2.06) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.