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Finding the Fourth Proportional to 276,713.30, 415,070.02 and 213,625.52

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Solution

The fourth proportional to 276,713.30, 415,070.02 and 213,625.52 is: 320,438.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,713.30 : 415,070.02 = 213,625.52 : x
  2. Step 2: Convert to fraction form
    276,713.30/415,070.02 = 213,625.52/x
  3. Step 3: Cross multiply
    276,713.30x = 415,070.02 × 213,625.52
  4. Step 4: Simplify right side
    276,713.30x = 88,669,548,858.91
  5. Step 5: Solve for x
    x = 88,669,548,858.91/276,713.30
  6. Step 6: Final answer
    x = 320,438.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.