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Finding the Fourth Proportional to 201,687.10, 302,530.65 and 83,589.10

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Solution

The fourth proportional to 201,687.10, 302,530.65 and 83,589.10 is: 125,383.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,687.10 : 302,530.65 = 83,589.10 : x
  2. Step 2: Convert to fraction form
    201,687.10/302,530.65 = 83,589.10/x
  3. Step 3: Cross multiply
    201,687.10x = 302,530.65 × 83,589.10
  4. Step 4: Simplify right side
    201,687.10x = 25,288,264,755.92
  5. Step 5: Solve for x
    x = 25,288,264,755.92/201,687.10
  6. Step 6: Final answer
    x = 125,383.65

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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.