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Finding the Fourth Proportional to 188,649.22, 260,709.30 and 154,604.02

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Solution

The fourth proportional to 188,649.22, 260,709.30 and 154,604.02 is: 213,659.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,649.22 : 260,709.30 = 154,604.02 : x
  2. Step 2: Convert to fraction form
    188,649.22/260,709.30 = 154,604.02/x
  3. Step 3: Cross multiply
    188,649.22x = 260,709.30 × 154,604.02
  4. Step 4: Simplify right side
    188,649.22x = 40,306,705,831.39
  5. Step 5: Solve for x
    x = 40,306,705,831.39/188,649.22
  6. Step 6: Final answer
    x = 213,659.54

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.