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Finding the Third Proportional to 76,584 and 158,424

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Solution

The third proportional to 76,584 and 158,424 is: 327,720.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,584 : 158,424 = 158,424 : x
  2. Step 2: Convert to fraction form
    76,584/158,424 = 158,424/x
  3. Step 3: Cross multiply
    76,584x = 158,424 × 158,424
  4. Step 4: Simplify right side
    76,584x = 25,098,163,776
  5. Step 5: Solve for x
    x = 25,098,163,776/76,584
  6. Step 6: Final answer
    x = 327,720.72

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Why These Related Problems?

These problems maintain the same ratio (2.07) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.