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Finding the Fourth Proportional to 96,199.20, 144,007.20 and 72,676.80

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Solution

The fourth proportional to 96,199.20, 144,007.20 and 72,676.80 is: 108,794.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    96,199.20 : 144,007.20 = 72,676.80 : x
  2. Step 2: Convert to fraction form
    96,199.20/144,007.20 = 72,676.80/x
  3. Step 3: Cross multiply
    96,199.20x = 144,007.20 × 72,676.80
  4. Step 4: Simplify right side
    96,199.20x = 10,465,982,472.96
  5. Step 5: Solve for x
    x = 10,465,982,472.96/96,199.20
  6. Step 6: Final answer
    x = 108,794.90

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1.5x scale

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.