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Finding the Fourth Proportional to 543,530.60, 815,324.30 and 164,441.80

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Solution

The fourth proportional to 543,530.60, 815,324.30 and 164,441.80 is: 246,671.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    543,530.60 : 815,324.30 = 164,441.80 : x
  2. Step 2: Convert to fraction form
    543,530.60/815,324.30 = 164,441.80/x
  3. Step 3: Cross multiply
    543,530.60x = 815,324.30 × 164,441.80
  4. Step 4: Simplify right side
    543,530.60x = 134,073,395,475.74
  5. Step 5: Solve for x
    x = 134,073,395,475.74/543,530.60
  6. Step 6: Final answer
    x = 246,671.29

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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.