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Finding the Fourth Proportional to 104,169.80, 156,263.94 and 29,290.60

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Solution

The fourth proportional to 104,169.80, 156,263.94 and 29,290.60 is: 43,938.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,169.80 : 156,263.94 = 29,290.60 : x
  2. Step 2: Convert to fraction form
    104,169.80/156,263.94 = 29,290.60/x
  3. Step 3: Cross multiply
    104,169.80x = 156,263.94 × 29,290.60
  4. Step 4: Simplify right side
    104,169.80x = 4,577,064,560.96
  5. Step 5: Solve for x
    x = 4,577,064,560.96/104,169.80
  6. Step 6: Final answer
    x = 43,938.50

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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.