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Finding the Fourth Proportional to 125,994.87, 188,987.58 and 31,225.37

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Solution

The fourth proportional to 125,994.87, 188,987.58 and 31,225.37 is: 46,836.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,994.87 : 188,987.58 = 31,225.37 : x
  2. Step 2: Convert to fraction form
    125,994.87/188,987.58 = 31,225.37/x
  3. Step 3: Cross multiply
    125,994.87x = 188,987.58 × 31,225.37
  4. Step 4: Simplify right side
    125,994.87x = 5,901,206,165.97
  5. Step 5: Solve for x
    x = 5,901,206,165.97/125,994.87
  6. Step 6: Final answer
    x = 46,836.88

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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.