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Finding the Fourth Proportional to 68,280.85, 102,425.89 and 32,749.96

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Solution

The fourth proportional to 68,280.85, 102,425.89 and 32,749.96 is: 49,127.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    68,280.85 : 102,425.89 = 32,749.96 : x
  2. Step 2: Convert to fraction form
    68,280.85/102,425.89 = 32,749.96/x
  3. Step 3: Cross multiply
    68,280.85x = 102,425.89 × 32,749.96
  4. Step 4: Simplify right side
    68,280.85x = 3,354,443,800.46
  5. Step 5: Solve for x
    x = 3,354,443,800.46/68,280.85
  6. Step 6: Final answer
    x = 49,127.15

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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.