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Finding the Fourth Proportional to 554,506.72, 831,812.46 and 155,147.56

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Solution

The fourth proportional to 554,506.72, 831,812.46 and 155,147.56 is: 232,736.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,506.72 : 831,812.46 = 155,147.56 : x
  2. Step 2: Convert to fraction form
    554,506.72/831,812.46 = 155,147.56/x
  3. Step 3: Cross multiply
    554,506.72x = 831,812.46 × 155,147.56
  4. Step 4: Simplify right side
    554,506.72x = 129,053,673,546.60
  5. Step 5: Solve for x
    x = 129,053,673,546.60/554,506.72
  6. Step 6: Final answer
    x = 232,736.00

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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.