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Finding the Fourth Proportional to 236,490.30, 354,735.45 and 147,843.90

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Solution

The fourth proportional to 236,490.30, 354,735.45 and 147,843.90 is: 221,765.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    236,490.30 : 354,735.45 = 147,843.90 : x
  2. Step 2: Convert to fraction form
    236,490.30/354,735.45 = 147,843.90/x
  3. Step 3: Cross multiply
    236,490.30x = 354,735.45 × 147,843.90
  4. Step 4: Simplify right side
    236,490.30x = 52,445,472,396.26
  5. Step 5: Solve for x
    x = 52,445,472,396.26/236,490.30
  6. Step 6: Final answer
    x = 221,765.85

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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.