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Finding the Fourth Proportional to 125,758.54, 188,608.56 and 36,988.30

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Solution

The fourth proportional to 125,758.54, 188,608.56 and 36,988.30 is: 55,473.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,758.54 : 188,608.56 = 36,988.30 : x
  2. Step 2: Convert to fraction form
    125,758.54/188,608.56 = 36,988.30/x
  3. Step 3: Cross multiply
    125,758.54x = 188,608.56 × 36,988.30
  4. Step 4: Simplify right side
    125,758.54x = 6,976,309,999.85
  5. Step 5: Solve for x
    x = 6,976,309,999.85/125,758.54
  6. Step 6: Final answer
    x = 55,473.85

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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.