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Finding the Fourth Proportional to 125,591.20, 188,411.10 and 36,847.60

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Solution

The fourth proportional to 125,591.20, 188,411.10 and 36,847.60 is: 55,278.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,591.20 : 188,411.10 = 36,847.60 : x
  2. Step 2: Convert to fraction form
    125,591.20/188,411.10 = 36,847.60/x
  3. Step 3: Cross multiply
    125,591.20x = 188,411.10 × 36,847.60
  4. Step 4: Simplify right side
    125,591.20x = 6,942,496,848.36
  5. Step 5: Solve for x
    x = 6,942,496,848.36/125,591.20
  6. Step 6: Final answer
    x = 55,278.53

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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.