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Finding the Third Proportional to 172,703.25 and 266,436

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Solution

The third proportional to 172,703.25 and 266,436 is: 411,041.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    172,703.25 : 266,436 = 266,436 : x
  2. Step 2: Convert to fraction form
    172,703.25/266,436 = 266,436/x
  3. Step 3: Cross multiply
    172,703.25x = 266,436 × 266,436
  4. Step 4: Simplify right side
    172,703.25x = 70,988,142,096
  5. Step 5: Solve for x
    x = 70,988,142,096/172,703.25
  6. Step 6: Final answer
    x = 411,041.15

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Why These Related Problems?

These problems maintain the same ratio (1.54) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.