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Finding the Third Proportional to 72,400 and 157,264

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Solution

The third proportional to 72,400 and 157,264 is: 341,601.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,400 : 157,264 = 157,264 : x
  2. Step 2: Convert to fraction form
    72,400/157,264 = 157,264/x
  3. Step 3: Cross multiply
    72,400x = 157,264 × 157,264
  4. Step 4: Simplify right side
    72,400x = 24,731,965,696
  5. Step 5: Solve for x
    x = 24,731,965,696/72,400
  6. Step 6: Final answer
    x = 341,601.74

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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.