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Finding the Fourth Proportional to 209,644.62, 289,310.25 and 114,151.89

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Solution

The fourth proportional to 209,644.62, 289,310.25 and 114,151.89 is: 157,529.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,644.62 : 289,310.25 = 114,151.89 : x
  2. Step 2: Convert to fraction form
    209,644.62/289,310.25 = 114,151.89/x
  3. Step 3: Cross multiply
    209,644.62x = 289,310.25 × 114,151.89
  4. Step 4: Simplify right side
    209,644.62x = 33,025,311,833.87
  5. Step 5: Solve for x
    x = 33,025,311,833.87/209,644.62
  6. Step 6: Final answer
    x = 157,529.98

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.