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Finding the Fourth Proportional to 441,428.86, 662,149.36 and 125,885.80

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Solution

The fourth proportional to 441,428.86, 662,149.36 and 125,885.80 is: 188,830.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    441,428.86 : 662,149.36 = 125,885.80 : x
  2. Step 2: Convert to fraction form
    441,428.86/662,149.36 = 125,885.80/x
  3. Step 3: Cross multiply
    441,428.86x = 662,149.36 × 125,885.80
  4. Step 4: Simplify right side
    441,428.86x = 83,355,201,903.09
  5. Step 5: Solve for x
    x = 83,355,201,903.09/441,428.86
  6. Step 6: Final answer
    x = 188,830.43

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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.