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Finding the Fourth Proportional to 665,761.86, 998,650.08 and 192,451.32

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Solution

The fourth proportional to 665,761.86, 998,650.08 and 192,451.32 is: 288,679.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    665,761.86 : 998,650.08 = 192,451.32 : x
  2. Step 2: Convert to fraction form
    665,761.86/998,650.08 = 192,451.32/x
  3. Step 3: Cross multiply
    665,761.86x = 998,650.08 × 192,451.32
  4. Step 4: Simplify right side
    665,761.86x = 192,191,526,114.11
  5. Step 5: Solve for x
    x = 192,191,526,114.11/665,761.86
  6. Step 6: Final answer
    x = 288,679.09

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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.