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Finding the Fourth Proportional to 442,244.50, 663,359.45 and 126,694.42

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Solution

The fourth proportional to 442,244.50, 663,359.45 and 126,694.42 is: 190,039.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,244.50 : 663,359.45 = 126,694.42 : x
  2. Step 2: Convert to fraction form
    442,244.50/663,359.45 = 126,694.42/x
  3. Step 3: Cross multiply
    442,244.50x = 663,359.45 × 126,694.42
  4. Step 4: Simplify right side
    442,244.50x = 84,043,938,477.40
  5. Step 5: Solve for x
    x = 84,043,938,477.40/442,244.50
  6. Step 6: Final answer
    x = 190,039.53

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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.