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Finding the Fourth Proportional to 264,778.62, 365,396.70 and 143,919.89

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Solution

The fourth proportional to 264,778.62, 365,396.70 and 143,919.89 is: 198,610.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,778.62 : 365,396.70 = 143,919.89 : x
  2. Step 2: Convert to fraction form
    264,778.62/365,396.70 = 143,919.89/x
  3. Step 3: Cross multiply
    264,778.62x = 365,396.70 × 143,919.89
  4. Step 4: Simplify right side
    264,778.62x = 52,587,852,953.32
  5. Step 5: Solve for x
    x = 52,587,852,953.32/264,778.62
  6. Step 6: Final answer
    x = 198,610.65

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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.