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Finding the Fourth Proportional to 554,541.14, 831,811.80 and 133,817.01

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Solution

The fourth proportional to 554,541.14, 831,811.80 and 133,817.01 is: 200,725.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,541.14 : 831,811.80 = 133,817.01 : x
  2. Step 2: Convert to fraction form
    554,541.14/831,811.80 = 133,817.01/x
  3. Step 3: Cross multiply
    554,541.14x = 831,811.80 × 133,817.01
  4. Step 4: Simplify right side
    554,541.14x = 111,310,567,958.72
  5. Step 5: Solve for x
    x = 111,310,567,958.72/554,541.14
  6. Step 6: Final answer
    x = 200,725.54

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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.