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Finding the Fourth Proportional to 104,606.35, 156,821.34 and 45,397.42

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Solution

The fourth proportional to 104,606.35, 156,821.34 and 45,397.42 is: 68,057.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,606.35 : 156,821.34 = 45,397.42 : x
  2. Step 2: Convert to fraction form
    104,606.35/156,821.34 = 45,397.42/x
  3. Step 3: Cross multiply
    104,606.35x = 156,821.34 × 45,397.42
  4. Step 4: Simplify right side
    104,606.35x = 7,119,284,236.94
  5. Step 5: Solve for x
    x = 7,119,284,236.94/104,606.35
  6. Step 6: Final answer
    x = 68,057.86

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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.