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Finding the Fourth Proportional to 554,374.77, 831,554.87 and 133,647.27

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Solution

The fourth proportional to 554,374.77, 831,554.87 and 133,647.27 is: 200,469.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,374.77 : 831,554.87 = 133,647.27 : x
  2. Step 2: Convert to fraction form
    554,374.77/831,554.87 = 133,647.27/x
  3. Step 3: Cross multiply
    554,374.77x = 831,554.87 × 133,647.27
  4. Step 4: Simplify right side
    554,374.77x = 111,135,037,562.47
  5. Step 5: Solve for x
    x = 111,135,037,562.47/554,374.77
  6. Step 6: Final answer
    x = 200,469.15

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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.