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Finding the Fourth Proportional to 554,389.02, 831,576.24 and 133,661.52

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Solution

The fourth proportional to 554,389.02, 831,576.24 and 133,661.52 is: 200,490.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,389.02 : 831,576.24 = 133,661.52 : x
  2. Step 2: Convert to fraction form
    554,389.02/831,576.24 = 133,661.52/x
  3. Step 3: Cross multiply
    554,389.02x = 831,576.24 × 133,661.52
  4. Step 4: Simplify right side
    554,389.02x = 111,149,744,234.29
  5. Step 5: Solve for x
    x = 111,149,744,234.29/554,389.02
  6. Step 6: Final answer
    x = 200,490.52

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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.