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Finding the Fourth Proportional to 554,540.92, 831,811.46 and 133,816.80

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Solution

The fourth proportional to 554,540.92, 831,811.46 and 133,816.80 is: 200,725.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,540.92 : 831,811.46 = 133,816.80 : x
  2. Step 2: Convert to fraction form
    554,540.92/831,811.46 = 133,816.80/x
  3. Step 3: Cross multiply
    554,540.92x = 831,811.46 × 133,816.80
  4. Step 4: Simplify right side
    554,540.92x = 111,310,347,780.53
  5. Step 5: Solve for x
    x = 111,310,347,780.53/554,540.92
  6. Step 6: Final answer
    x = 200,725.22

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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.