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Finding the Fourth Proportional to 125,412.64, 188,125.11 and 50,522.63

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Solution

The fourth proportional to 125,412.64, 188,125.11 and 50,522.63 is: 75,786.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,412.64 : 188,125.11 = 50,522.63 : x
  2. Step 2: Convert to fraction form
    125,412.64/188,125.11 = 50,522.63/x
  3. Step 3: Cross multiply
    125,412.64x = 188,125.11 × 50,522.63
  4. Step 4: Simplify right side
    125,412.64x = 9,504,574,385.61
  5. Step 5: Solve for x
    x = 9,504,574,385.61/125,412.64
  6. Step 6: Final answer
    x = 75,786.42

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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.