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Finding the Fourth Proportional to 125,418.56, 188,152.08 and 36,672.48

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Solution

The fourth proportional to 125,418.56, 188,152.08 and 36,672.48 is: 55,015.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,418.56 : 188,152.08 = 36,672.48 : x
  2. Step 2: Convert to fraction form
    125,418.56/188,152.08 = 36,672.48/x
  3. Step 3: Cross multiply
    125,418.56x = 188,152.08 × 36,672.48
  4. Step 4: Simplify right side
    125,418.56x = 6,900,003,390.76
  5. Step 5: Solve for x
    x = 6,900,003,390.76/125,418.56
  6. Step 6: Final answer
    x = 55,015.81

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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.