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Finding the Fourth Proportional to 203,513.79, 305,285.27 and 53,752.59

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Solution

The fourth proportional to 203,513.79, 305,285.27 and 53,752.59 is: 80,632.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,513.79 : 305,285.27 = 53,752.59 : x
  2. Step 2: Convert to fraction form
    203,513.79/305,285.27 = 53,752.59/x
  3. Step 3: Cross multiply
    203,513.79x = 305,285.27 × 53,752.59
  4. Step 4: Simplify right side
    203,513.79x = 16,409,872,899.56
  5. Step 5: Solve for x
    x = 16,409,872,899.56/203,513.79
  6. Step 6: Final answer
    x = 80,632.73

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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.