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Finding the Fourth Proportional to 269,448.54, 371,863.86 and 154,742.22

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Solution

The fourth proportional to 269,448.54, 371,863.86 and 154,742.22 is: 213,558.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,448.54 : 371,863.86 = 154,742.22 : x
  2. Step 2: Convert to fraction form
    269,448.54/371,863.86 = 154,742.22/x
  3. Step 3: Cross multiply
    269,448.54x = 371,863.86 × 154,742.22
  4. Step 4: Simplify right side
    269,448.54x = 57,543,039,234.17
  5. Step 5: Solve for x
    x = 57,543,039,234.17/269,448.54
  6. Step 6: Final answer
    x = 213,558.55

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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.