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Finding the Fourth Proportional to 221,636.64, 332,358.82 and 121,766.88

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Solution

The fourth proportional to 221,636.64, 332,358.82 and 121,766.88 is: 182,597.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,636.64 : 332,358.82 = 121,766.88 : x
  2. Step 2: Convert to fraction form
    221,636.64/332,358.82 = 121,766.88/x
  3. Step 3: Cross multiply
    221,636.64x = 332,358.82 × 121,766.88
  4. Step 4: Simplify right side
    221,636.64x = 40,470,296,551.88
  5. Step 5: Solve for x
    x = 40,470,296,551.88/221,636.64
  6. Step 6: Final answer
    x = 182,597.50

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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.