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Finding the Fourth Proportional to 180,978.96, 271,369.76 and 62,640.48

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Solution

The fourth proportional to 180,978.96, 271,369.76 and 62,640.48 is: 93,926.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    180,978.96 : 271,369.76 = 62,640.48 : x
  2. Step 2: Convert to fraction form
    180,978.96/271,369.76 = 62,640.48/x
  3. Step 3: Cross multiply
    180,978.96x = 271,369.76 × 62,640.48
  4. Step 4: Simplify right side
    180,978.96x = 16,998,732,023.88
  5. Step 5: Solve for x
    x = 16,998,732,023.88/180,978.96
  6. Step 6: Final answer
    x = 93,926.56

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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.