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Finding the Fourth Proportional to 192,748.88, 289,150.20 and 87,594.32

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Solution

The fourth proportional to 192,748.88, 289,150.20 and 87,594.32 is: 131,403.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    192,748.88 : 289,150.20 = 87,594.32 : x
  2. Step 2: Convert to fraction form
    192,748.88/289,150.20 = 87,594.32/x
  3. Step 3: Cross multiply
    192,748.88x = 289,150.20 × 87,594.32
  4. Step 4: Simplify right side
    192,748.88x = 25,327,915,146.86
  5. Step 5: Solve for x
    x = 25,327,915,146.86/192,748.88
  6. Step 6: Final answer
    x = 131,403.70

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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.