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Finding the Fourth Proportional to 219,810.70, 329,716.05 and 204,064.30

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Solution

The fourth proportional to 219,810.70, 329,716.05 and 204,064.30 is: 306,096.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    219,810.70 : 329,716.05 = 204,064.30 : x
  2. Step 2: Convert to fraction form
    219,810.70/329,716.05 = 204,064.30/x
  3. Step 3: Cross multiply
    219,810.70x = 329,716.05 × 204,064.30
  4. Step 4: Simplify right side
    219,810.70x = 67,283,274,942.02
  5. Step 5: Solve for x
    x = 67,283,274,942.02/219,810.70
  6. Step 6: Final answer
    x = 306,096.45

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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.