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Finding the Fourth Proportional to 321,726.53, 444,035.91 and 178,532.57

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Solution

The fourth proportional to 321,726.53, 444,035.91 and 178,532.57 is: 246,404.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    321,726.53 : 444,035.91 = 178,532.57 : x
  2. Step 2: Convert to fraction form
    321,726.53/444,035.91 = 178,532.57/x
  3. Step 3: Cross multiply
    321,726.53x = 444,035.91 × 178,532.57
  4. Step 4: Simplify right side
    321,726.53x = 79,274,869,964.41
  5. Step 5: Solve for x
    x = 79,274,869,964.41/321,726.53
  6. Step 6: Final answer
    x = 246,404.52

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.