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Finding the Fourth Proportional to 333,811.28, 500,717.88 and 84,493.04

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Solution

The fourth proportional to 333,811.28, 500,717.88 and 84,493.04 is: 126,739.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    333,811.28 : 500,717.88 = 84,493.04 : x
  2. Step 2: Convert to fraction form
    333,811.28/500,717.88 = 84,493.04/x
  3. Step 3: Cross multiply
    333,811.28x = 500,717.88 × 84,493.04
  4. Step 4: Simplify right side
    333,811.28x = 42,307,175,863.56
  5. Step 5: Solve for x
    x = 42,307,175,863.56/333,811.28
  6. Step 6: Final answer
    x = 126,739.80

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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.