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Finding the Fourth Proportional to 221,418.76, 332,119.50 and 63,646.60

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Solution

The fourth proportional to 221,418.76, 332,119.50 and 63,646.60 is: 95,467.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,418.76 : 332,119.50 = 63,646.60 : x
  2. Step 2: Convert to fraction form
    221,418.76/332,119.50 = 63,646.60/x
  3. Step 3: Cross multiply
    221,418.76x = 332,119.50 × 63,646.60
  4. Step 4: Simplify right side
    221,418.76x = 21,138,276,968.70
  5. Step 5: Solve for x
    x = 21,138,276,968.70/221,418.76
  6. Step 6: Final answer
    x = 95,467.42

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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.