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Finding the Fourth Proportional to 333,809.28, 500,714.88 and 84,491.04

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Solution

The fourth proportional to 333,809.28, 500,714.88 and 84,491.04 is: 126,736.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,809.28 : 500,714.88 = 84,491.04 : x
  2. Step 2: Convert to fraction form
    333,809.28/500,714.88 = 84,491.04/x
  3. Step 3: Cross multiply
    333,809.28x = 500,714.88 × 84,491.04
  4. Step 4: Simplify right side
    333,809.28x = 42,305,920,954.68
  5. Step 5: Solve for x
    x = 42,305,920,954.68/333,809.28
  6. Step 6: Final answer
    x = 126,736.80

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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.