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Finding the Fourth Proportional to 125,674.16, 188,645.51 and 50,843.21

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Solution

The fourth proportional to 125,674.16, 188,645.51 and 50,843.21 is: 76,319.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,674.16 : 188,645.51 = 50,843.21 : x
  2. Step 2: Convert to fraction form
    125,674.16/188,645.51 = 50,843.21/x
  3. Step 3: Cross multiply
    125,674.16x = 188,645.51 × 50,843.21
  4. Step 4: Simplify right side
    125,674.16x = 9,591,342,464.37
  5. Step 5: Solve for x
    x = 9,591,342,464.37/125,674.16
  6. Step 6: Final answer
    x = 76,319.13

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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.