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Finding the Fourth Proportional to 402,610.80, 603,992.40 and 132,754.44

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Solution

The fourth proportional to 402,610.80, 603,992.40 and 132,754.44 is: 199,156.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,610.80 : 603,992.40 = 132,754.44 : x
  2. Step 2: Convert to fraction form
    402,610.80/603,992.40 = 132,754.44/x
  3. Step 3: Cross multiply
    402,610.80x = 603,992.40 × 132,754.44
  4. Step 4: Simplify right side
    402,610.80x = 80,182,672,826.26
  5. Step 5: Solve for x
    x = 80,182,672,826.26/402,610.80
  6. Step 6: Final answer
    x = 199,156.79

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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.