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Finding the Fourth Proportional to 221,764.60, 332,646.90 and 63,998.20

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Solution

The fourth proportional to 221,764.60, 332,646.90 and 63,998.20 is: 95,997.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,764.60 : 332,646.90 = 63,998.20 : x
  2. Step 2: Convert to fraction form
    221,764.60/332,646.90 = 63,998.20/x
  3. Step 3: Cross multiply
    221,764.60x = 332,646.90 × 63,998.20
  4. Step 4: Simplify right side
    221,764.60x = 21,288,802,835.58
  5. Step 5: Solve for x
    x = 21,288,802,835.58/221,764.60
  6. Step 6: Final answer
    x = 95,997.30

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1.5x scale

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.