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Finding the Fourth Proportional to 400,250.75, 600,611.85 and 147,708.95

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Solution

The fourth proportional to 400,250.75, 600,611.85 and 147,708.95 is: 221,650.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    400,250.75 : 600,611.85 = 147,708.95 : x
  2. Step 2: Convert to fraction form
    400,250.75/600,611.85 = 147,708.95/x
  3. Step 3: Cross multiply
    400,250.75x = 600,611.85 × 147,708.95
  4. Step 4: Simplify right side
    400,250.75x = 88,715,745,721.06
  5. Step 5: Solve for x
    x = 88,715,745,721.06/400,250.75
  6. Step 6: Final answer
    x = 221,650.42

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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.