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Finding the Fourth Proportional to 264,589.11, 365,139.74 and 143,737.31

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Solution

The fourth proportional to 264,589.11, 365,139.74 and 143,737.31 is: 198,361.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,589.11 : 365,139.74 = 143,737.31 : x
  2. Step 2: Convert to fraction form
    264,589.11/365,139.74 = 143,737.31/x
  3. Step 3: Cross multiply
    264,589.11x = 365,139.74 × 143,737.31
  4. Step 4: Simplify right side
    264,589.11x = 52,484,205,273.89
  5. Step 5: Solve for x
    x = 52,484,205,273.89/264,589.11
  6. Step 6: Final answer
    x = 198,361.17

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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.