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Finding the Third Proportional to 76,246 and 157,688

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Solution

The third proportional to 76,246 and 157,688 is: 326,122.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,246 : 157,688 = 157,688 : x
  2. Step 2: Convert to fraction form
    76,246/157,688 = 157,688/x
  3. Step 3: Cross multiply
    76,246x = 157,688 × 157,688
  4. Step 4: Simplify right side
    76,246x = 24,865,505,344
  5. Step 5: Solve for x
    x = 24,865,505,344/76,246
  6. Step 6: Final answer
    x = 326,122.10

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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.