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Finding the Fourth Proportional to 452,576.34, 678,951.99 and 153,105.57

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Solution

The fourth proportional to 452,576.34, 678,951.99 and 153,105.57 is: 229,687.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,576.34 : 678,951.99 = 153,105.57 : x
  2. Step 2: Convert to fraction form
    452,576.34/678,951.99 = 153,105.57/x
  3. Step 3: Cross multiply
    452,576.34x = 678,951.99 × 153,105.57
  4. Step 4: Simplify right side
    452,576.34x = 103,951,331,431.58
  5. Step 5: Solve for x
    x = 103,951,331,431.58/452,576.34
  6. Step 6: Final answer
    x = 229,687.95

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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.