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Finding the Fourth Proportional to 99,363.25, 149,044.98 and 40,199.44

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Solution

The fourth proportional to 99,363.25, 149,044.98 and 40,199.44 is: 60,299.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    99,363.25 : 149,044.98 = 40,199.44 : x
  2. Step 2: Convert to fraction form
    99,363.25/149,044.98 = 40,199.44/x
  3. Step 3: Cross multiply
    99,363.25x = 149,044.98 × 40,199.44
  4. Step 4: Simplify right side
    99,363.25x = 5,991,524,730.81
  5. Step 5: Solve for x
    x = 5,991,524,730.81/99,363.25
  6. Step 6: Final answer
    x = 60,299.20

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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.