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Finding the Fourth Proportional to 264,723.48, 365,321.87 and 143,866.68

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Solution

The fourth proportional to 264,723.48, 365,321.87 and 143,866.68 is: 198,537.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    264,723.48 : 365,321.87 = 143,866.68 : x
  2. Step 2: Convert to fraction form
    264,723.48/365,321.87 = 143,866.68/x
  3. Step 3: Cross multiply
    264,723.48x = 365,321.87 × 143,866.68
  4. Step 4: Simplify right side
    264,723.48x = 52,557,643,018.50
  5. Step 5: Solve for x
    x = 52,557,643,018.50/264,723.48
  6. Step 6: Final answer
    x = 198,537.90

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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.