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Finding the Fourth Proportional to 250,436, 375,654 and 84,224

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Solution

The fourth proportional to 250,436, 375,654 and 84,224 is: 126,336

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,436 : 375,654 = 84,224 : x
  2. Step 2: Convert to fraction form
    250,436/375,654 = 84,224/x
  3. Step 3: Cross multiply
    250,436x = 375,654 × 84,224
  4. Step 4: Simplify right side
    250,436x = 31,639,082,496
  5. Step 5: Solve for x
    x = 31,639,082,496/250,436
  6. Step 6: Final answer
    x = 126,336

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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.