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Finding the Fourth Proportional to 104,516.96, 156,773.90 and 25,631.80

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Solution

The fourth proportional to 104,516.96, 156,773.90 and 25,631.80 is: 38,447.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,516.96 : 156,773.90 = 25,631.80 : x
  2. Step 2: Convert to fraction form
    104,516.96/156,773.90 = 25,631.80/x
  3. Step 3: Cross multiply
    104,516.96x = 156,773.90 × 25,631.80
  4. Step 4: Simplify right side
    104,516.96x = 4,018,397,250.02
  5. Step 5: Solve for x
    x = 4,018,397,250.02/104,516.96
  6. Step 6: Final answer
    x = 38,447.32

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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.