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Finding the Fourth Proportional to 363,399.12, 501,485.73 and 202,254.20

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Solution

The fourth proportional to 363,399.12, 501,485.73 and 202,254.20 is: 279,107.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,399.12 : 501,485.73 = 202,254.20 : x
  2. Step 2: Convert to fraction form
    363,399.12/501,485.73 = 202,254.20/x
  3. Step 3: Cross multiply
    363,399.12x = 501,485.73 × 202,254.20
  4. Step 4: Simplify right side
    363,399.12x = 101,427,592,625.14
  5. Step 5: Solve for x
    x = 101,427,592,625.14/363,399.12
  6. Step 6: Final answer
    x = 279,107.98

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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.