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Finding the Fourth Proportional to 325,680.60, 449,438.54 and 180,495.66

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Solution

The fourth proportional to 325,680.60, 449,438.54 and 180,495.66 is: 249,083.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,680.60 : 449,438.54 = 180,495.66 : x
  2. Step 2: Convert to fraction form
    325,680.60/449,438.54 = 180,495.66/x
  3. Step 3: Cross multiply
    325,680.60x = 449,438.54 × 180,495.66
  4. Step 4: Simplify right side
    325,680.60x = 81,121,705,906.74
  5. Step 5: Solve for x
    x = 81,121,705,906.74/325,680.60
  6. Step 6: Final answer
    x = 249,083.63

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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.