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Finding the Fourth Proportional to 221,924.50, 332,970.60 and 133,239.88

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Solution

The fourth proportional to 221,924.50, 332,970.60 and 133,239.88 is: 199,910.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,924.50 : 332,970.60 = 133,239.88 : x
  2. Step 2: Convert to fraction form
    221,924.50/332,970.60 = 133,239.88/x
  3. Step 3: Cross multiply
    221,924.50x = 332,970.60 × 133,239.88
  4. Step 4: Simplify right side
    221,924.50x = 44,364,962,787.53
  5. Step 5: Solve for x
    x = 44,364,962,787.53/221,924.50
  6. Step 6: Final answer
    x = 199,910.16

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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.