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Finding the Fourth Proportional to 104,564.85, 156,847.80 and 25,679.10

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Solution

The fourth proportional to 104,564.85, 156,847.80 and 25,679.10 is: 38,518.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,564.85 : 156,847.80 = 25,679.10 : x
  2. Step 2: Convert to fraction form
    104,564.85/156,847.80 = 25,679.10/x
  3. Step 3: Cross multiply
    104,564.85x = 156,847.80 × 25,679.10
  4. Step 4: Simplify right side
    104,564.85x = 4,027,710,829.40
  5. Step 5: Solve for x
    x = 4,027,710,829.40/104,564.85
  6. Step 6: Final answer
    x = 38,518.78

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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.