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Finding the Fourth Proportional to 222,120.54, 333,180.54 and 72,360.58

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Solution

The fourth proportional to 222,120.54, 333,180.54 and 72,360.58 is: 108,540.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    222,120.54 : 333,180.54 = 72,360.58 : x
  2. Step 2: Convert to fraction form
    222,120.54/333,180.54 = 72,360.58/x
  3. Step 3: Cross multiply
    222,120.54x = 333,180.54 × 72,360.58
  4. Step 4: Simplify right side
    222,120.54x = 24,109,137,119.11
  5. Step 5: Solve for x
    x = 24,109,137,119.11/222,120.54
  6. Step 6: Final answer
    x = 108,540.78

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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.