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Finding the Fourth Proportional to 203,922.40, 305,883.60 and 63,695.20

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Solution

The fourth proportional to 203,922.40, 305,883.60 and 63,695.20 is: 95,542.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,922.40 : 305,883.60 = 63,695.20 : x
  2. Step 2: Convert to fraction form
    203,922.40/305,883.60 = 63,695.20/x
  3. Step 3: Cross multiply
    203,922.40x = 305,883.60 × 63,695.20
  4. Step 4: Simplify right side
    203,922.40x = 19,483,317,078.72
  5. Step 5: Solve for x
    x = 19,483,317,078.72/203,922.40
  6. Step 6: Final answer
    x = 95,542.80

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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.