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Finding the Fourth Proportional to 479,072.98, 718,400.86 and 137,441.04

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Solution

The fourth proportional to 479,072.98, 718,400.86 and 137,441.04 is: 206,101.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,072.98 : 718,400.86 = 137,441.04 : x
  2. Step 2: Convert to fraction form
    479,072.98/718,400.86 = 137,441.04/x
  3. Step 3: Cross multiply
    479,072.98x = 718,400.86 × 137,441.04
  4. Step 4: Simplify right side
    479,072.98x = 98,737,761,335.29
  5. Step 5: Solve for x
    x = 98,737,761,335.29/479,072.98
  6. Step 6: Final answer
    x = 206,101.71

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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.