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Finding the Fourth Proportional to 221,636.82, 332,484 and 101,664.84

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Solution

The fourth proportional to 221,636.82, 332,484 and 101,664.84 is: 152,510.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,636.82 : 332,484 = 101,664.84 : x
  2. Step 2: Convert to fraction form
    221,636.82/332,484 = 101,664.84/x
  3. Step 3: Cross multiply
    221,636.82x = 332,484 × 101,664.84
  4. Step 4: Simplify right side
    221,636.82x = 33,801,932,662.56
  5. Step 5: Solve for x
    x = 33,801,932,662.56/221,636.82
  6. Step 6: Final answer
    x = 152,510.46

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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.