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Finding the Fourth Proportional to 146,843.70, 220,265.55 and 136,929.30

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Solution

The fourth proportional to 146,843.70, 220,265.55 and 136,929.30 is: 205,393.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    146,843.70 : 220,265.55 = 136,929.30 : x
  2. Step 2: Convert to fraction form
    146,843.70/220,265.55 = 136,929.30/x
  3. Step 3: Cross multiply
    146,843.70x = 220,265.55 × 136,929.30
  4. Step 4: Simplify right side
    146,843.70x = 30,160,807,575.62
  5. Step 5: Solve for x
    x = 30,160,807,575.62/146,843.70
  6. Step 6: Final answer
    x = 205,393.95

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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.