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Finding the Fourth Proportional to 192,809.86, 289,228.26 and 59,672.60

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Solution

The fourth proportional to 192,809.86, 289,228.26 and 59,672.60 is: 89,513.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,809.86 : 289,228.26 = 59,672.60 : x
  2. Step 2: Convert to fraction form
    192,809.86/289,228.26 = 59,672.60/x
  3. Step 3: Cross multiply
    192,809.86x = 289,228.26 × 59,672.60
  4. Step 4: Simplify right side
    192,809.86x = 17,259,002,267.68
  5. Step 5: Solve for x
    x = 17,259,002,267.68/192,809.86
  6. Step 6: Final answer
    x = 89,513.07

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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.