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Finding the Fourth Proportional to 104,564.79, 156,847.71 and 25,679.04

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Solution

The fourth proportional to 104,564.79, 156,847.71 and 25,679.04 is: 38,518.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,564.79 : 156,847.71 = 25,679.04 : x
  2. Step 2: Convert to fraction form
    104,564.79/156,847.71 = 25,679.04/x
  3. Step 3: Cross multiply
    104,564.79x = 156,847.71 × 25,679.04
  4. Step 4: Simplify right side
    104,564.79x = 4,027,698,619.00
  5. Step 5: Solve for x
    x = 4,027,698,619.00/104,564.79
  6. Step 6: Final answer
    x = 38,518.69

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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.