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Finding the Fourth Proportional to 125,474.48, 188,161.68 and 55,304

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Solution

The fourth proportional to 125,474.48, 188,161.68 and 55,304 is: 82,933.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,474.48 : 188,161.68 = 55,304 : x
  2. Step 2: Convert to fraction form
    125,474.48/188,161.68 = 55,304/x
  3. Step 3: Cross multiply
    125,474.48x = 188,161.68 × 55,304
  4. Step 4: Simplify right side
    125,474.48x = 10,406,093,550.72
  5. Step 5: Solve for x
    x = 10,406,093,550.72/125,474.48
  6. Step 6: Final answer
    x = 82,933.94

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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.