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Finding the Fourth Proportional to 303,945.48, 455,851.03 and 87,757.24

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Solution

The fourth proportional to 303,945.48, 455,851.03 and 87,757.24 is: 131,616.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,945.48 : 455,851.03 = 87,757.24 : x
  2. Step 2: Convert to fraction form
    303,945.48/455,851.03 = 87,757.24/x
  3. Step 3: Cross multiply
    303,945.48x = 455,851.03 × 87,757.24
  4. Step 4: Simplify right side
    303,945.48x = 40,004,228,243.96
  5. Step 5: Solve for x
    x = 40,004,228,243.96/303,945.48
  6. Step 6: Final answer
    x = 131,616.46

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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.