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Finding the Fourth Proportional to 452,448.65, 678,672.36 and 115,489.34

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Solution

The fourth proportional to 452,448.65, 678,672.36 and 115,489.34 is: 173,233.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    452,448.65 : 678,672.36 = 115,489.34 : x
  2. Step 2: Convert to fraction form
    452,448.65/678,672.36 = 115,489.34/x
  3. Step 3: Cross multiply
    452,448.65x = 678,672.36 × 115,489.34
  4. Step 4: Simplify right side
    452,448.65x = 78,379,422,932.64
  5. Step 5: Solve for x
    x = 78,379,422,932.64/452,448.65
  6. Step 6: Final answer
    x = 173,233.85

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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.