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Finding the Fourth Proportional to 125,872.92, 188,809.88 and 50,994.48

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Solution

The fourth proportional to 125,872.92, 188,809.88 and 50,994.48 is: 76,491.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,872.92 : 188,809.88 = 50,994.48 : x
  2. Step 2: Convert to fraction form
    125,872.92/188,809.88 = 50,994.48/x
  3. Step 3: Cross multiply
    125,872.92x = 188,809.88 × 50,994.48
  4. Step 4: Simplify right side
    125,872.92x = 9,628,261,394.49
  5. Step 5: Solve for x
    x = 9,628,261,394.49/125,872.92
  6. Step 6: Final answer
    x = 76,491.92

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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.