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Finding the Fourth Proportional to 496,731.72, 745,104.36 and 141,745.62

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Solution

The fourth proportional to 496,731.72, 745,104.36 and 141,745.62 is: 212,620.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    496,731.72 : 745,104.36 = 141,745.62 : x
  2. Step 2: Convert to fraction form
    496,731.72/745,104.36 = 141,745.62/x
  3. Step 3: Cross multiply
    496,731.72x = 745,104.36 × 141,745.62
  4. Step 4: Simplify right side
    496,731.72x = 105,615,279,472.90
  5. Step 5: Solve for x
    x = 105,615,279,472.90/496,731.72
  6. Step 6: Final answer
    x = 212,620.36

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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.