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Finding the Fourth Proportional to 149,662.76, 206,507.41 and 88,418.92

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Solution

The fourth proportional to 149,662.76, 206,507.41 and 88,418.92 is: 122,002.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    149,662.76 : 206,507.41 = 88,418.92 : x
  2. Step 2: Convert to fraction form
    149,662.76/206,507.41 = 88,418.92/x
  3. Step 3: Cross multiply
    149,662.76x = 206,507.41 × 88,418.92
  4. Step 4: Simplify right side
    149,662.76x = 18,259,160,689.57
  5. Step 5: Solve for x
    x = 18,259,160,689.57/149,662.76
  6. Step 6: Final answer
    x = 122,002.04

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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.