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Finding the Fourth Proportional to 264,778.53, 365,396.85 and 143,920.10

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Solution

The fourth proportional to 264,778.53, 365,396.85 and 143,920.10 is: 198,611.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,778.53 : 365,396.85 = 143,920.10 : x
  2. Step 2: Convert to fraction form
    264,778.53/365,396.85 = 143,920.10/x
  3. Step 3: Cross multiply
    264,778.53x = 365,396.85 × 143,920.10
  4. Step 4: Simplify right side
    264,778.53x = 52,587,949,364.70
  5. Step 5: Solve for x
    x = 52,587,949,364.70/264,778.53
  6. Step 6: Final answer
    x = 198,611.08

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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.