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Finding the Fourth Proportional to 219,503.28, 329,217.66 and 61,694.64

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Solution

The fourth proportional to 219,503.28, 329,217.66 and 61,694.64 is: 92,531.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,503.28 : 329,217.66 = 61,694.64 : x
  2. Step 2: Convert to fraction form
    219,503.28/329,217.66 = 61,694.64/x
  3. Step 3: Cross multiply
    219,503.28x = 329,217.66 × 61,694.64
  4. Step 4: Simplify right side
    219,503.28x = 20,310,965,015.34
  5. Step 5: Solve for x
    x = 20,310,965,015.34/219,503.28
  6. Step 6: Final answer
    x = 92,531.49

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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.