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Finding the Fourth Proportional to 226,915.97, 313,141.45 and 124,939.30

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Solution

The fourth proportional to 226,915.97, 313,141.45 and 124,939.30 is: 172,414.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,915.97 : 313,141.45 = 124,939.30 : x
  2. Step 2: Convert to fraction form
    226,915.97/313,141.45 = 124,939.30/x
  3. Step 3: Cross multiply
    226,915.97x = 313,141.45 × 124,939.30
  4. Step 4: Simplify right side
    226,915.97x = 39,123,673,563.99
  5. Step 5: Solve for x
    x = 39,123,673,563.99/226,915.97
  6. Step 6: Final answer
    x = 172,414.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.