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Finding the Fourth Proportional to 200,553.03, 300,790.67 and 75,903.75

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Solution

The fourth proportional to 200,553.03, 300,790.67 and 75,903.75 is: 113,840.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    200,553.03 : 300,790.67 = 75,903.75 : x
  2. Step 2: Convert to fraction form
    200,553.03/300,790.67 = 75,903.75/x
  3. Step 3: Cross multiply
    200,553.03x = 300,790.67 × 75,903.75
  4. Step 4: Simplify right side
    200,553.03x = 22,831,139,438.49
  5. Step 5: Solve for x
    x = 22,831,139,438.49/200,553.03
  6. Step 6: Final answer
    x = 113,840.91

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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.