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Finding the Fourth Proportional to 299,714.70, 449,744.85 and 112,860.30

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Solution

The fourth proportional to 299,714.70, 449,744.85 and 112,860.30 is: 169,355.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    299,714.70 : 449,744.85 = 112,860.30 : x
  2. Step 2: Convert to fraction form
    299,714.70/449,744.85 = 112,860.30/x
  3. Step 3: Cross multiply
    299,714.70x = 449,744.85 × 112,860.30
  4. Step 4: Simplify right side
    299,714.70x = 50,758,338,694.46
  5. Step 5: Solve for x
    x = 50,758,338,694.46/299,714.70
  6. Step 6: Final answer
    x = 169,355.52

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1.5x scale

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.