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Finding the Third Proportional to 114,605 and 172,124

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Solution

The third proportional to 114,605 and 172,124 is: 258,511.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    114,605 : 172,124 = 172,124 : x
  2. Step 2: Convert to fraction form
    114,605/172,124 = 172,124/x
  3. Step 3: Cross multiply
    114,605x = 172,124 × 172,124
  4. Step 4: Simplify right side
    114,605x = 29,626,671,376
  5. Step 5: Solve for x
    x = 29,626,671,376/114,605
  6. Step 6: Final answer
    x = 258,511.16

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.