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Finding the Fourth Proportional to 298,991.15, 448,410.17 and 88,579.88

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Solution

The fourth proportional to 298,991.15, 448,410.17 and 88,579.88 is: 132,847.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    298,991.15 : 448,410.17 = 88,579.88 : x
  2. Step 2: Convert to fraction form
    298,991.15/448,410.17 = 88,579.88/x
  3. Step 3: Cross multiply
    298,991.15x = 448,410.17 × 88,579.88
  4. Step 4: Simplify right side
    298,991.15x = 39,720,119,049.38
  5. Step 5: Solve for x
    x = 39,720,119,049.38/298,991.15
  6. Step 6: Final answer
    x = 132,847.14

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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.