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Finding the Fourth Proportional to 207,650.88, 311,023.90 and 136,493.19

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Solution

The fourth proportional to 207,650.88, 311,023.90 and 136,493.19 is: 204,442.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,650.88 : 311,023.90 = 136,493.19 : x
  2. Step 2: Convert to fraction form
    207,650.88/311,023.90 = 136,493.19/x
  3. Step 3: Cross multiply
    207,650.88x = 311,023.90 × 136,493.19
  4. Step 4: Simplify right side
    207,650.88x = 42,452,644,277.24
  5. Step 5: Solve for x
    x = 42,452,644,277.24/207,650.88
  6. Step 6: Final answer
    x = 204,442.40

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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.