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Finding the Fourth Proportional to 104,561.60, 156,784.80 and 34,404.80

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Solution

The fourth proportional to 104,561.60, 156,784.80 and 34,404.80 is: 51,588.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,561.60 : 156,784.80 = 34,404.80 : x
  2. Step 2: Convert to fraction form
    104,561.60/156,784.80 = 34,404.80/x
  3. Step 3: Cross multiply
    104,561.60x = 156,784.80 × 34,404.80
  4. Step 4: Simplify right side
    104,561.60x = 5,394,149,687.04
  5. Step 5: Solve for x
    x = 5,394,149,687.04/104,561.60
  6. Step 6: Final answer
    x = 51,588.25

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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.