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Finding the Third Proportional to 71,830 and 157,376

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Solution

The third proportional to 71,830 and 157,376 is: 344,803.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,830 : 157,376 = 157,376 : x
  2. Step 2: Convert to fraction form
    71,830/157,376 = 157,376/x
  3. Step 3: Cross multiply
    71,830x = 157,376 × 157,376
  4. Step 4: Simplify right side
    71,830x = 24,767,205,376
  5. Step 5: Solve for x
    x = 24,767,205,376/71,830
  6. Step 6: Final answer
    x = 344,803.08

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.