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Finding the Fourth Proportional to 221,416.76, 332,116.50 and 63,644.60

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Solution

The fourth proportional to 221,416.76, 332,116.50 and 63,644.60 is: 95,464.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,416.76 : 332,116.50 = 63,644.60 : x
  2. Step 2: Convert to fraction form
    221,416.76/332,116.50 = 63,644.60/x
  3. Step 3: Cross multiply
    221,416.76x = 332,116.50 × 63,644.60
  4. Step 4: Simplify right side
    221,416.76x = 21,137,421,795.90
  5. Step 5: Solve for x
    x = 21,137,421,795.90/221,416.76
  6. Step 6: Final answer
    x = 95,464.42

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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.