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Finding the Fourth Proportional to 13,944,039.20, 20,958,049.20 and 12,096,461.60

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Solution

The fourth proportional to 13,944,039.20, 20,958,049.20 and 12,096,461.60 is: 18,181,119.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,944,039.20 : 20,958,049.20 = 12,096,461.60 : x
  2. Step 2: Convert to fraction form
    13,944,039.20/20,958,049.20 = 12,096,461.60/x
  3. Step 3: Cross multiply
    13,944,039.20x = 20,958,049.20 × 12,096,461.60
  4. Step 4: Simplify right side
    13,944,039.20x = 253,518,237,358,710.72
  5. Step 5: Solve for x
    x = 253,518,237,358,710.72/13,944,039.20
  6. Step 6: Final answer
    x = 18,181,119.09

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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.