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Finding the Fourth Proportional to 125,378.52, 188,012.28 and 58,764.84

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Solution

The fourth proportional to 125,378.52, 188,012.28 and 58,764.84 is: 88,121.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    125,378.52 : 188,012.28 = 58,764.84 : x
  2. Step 2: Convert to fraction form
    125,378.52/188,012.28 = 58,764.84/x
  3. Step 3: Cross multiply
    125,378.52x = 188,012.28 × 58,764.84
  4. Step 4: Simplify right side
    125,378.52x = 11,048,511,552.24
  5. Step 5: Solve for x
    x = 11,048,511,552.24/125,378.52
  6. Step 6: Final answer
    x = 88,121.25

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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.