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Finding the Fourth Proportional to 69,851.60, 104,781.76 and 34,755.92

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Solution

The fourth proportional to 69,851.60, 104,781.76 and 34,755.92 is: 52,136.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,851.60 : 104,781.76 = 34,755.92 : x
  2. Step 2: Convert to fraction form
    69,851.60/104,781.76 = 34,755.92/x
  3. Step 3: Cross multiply
    69,851.60x = 104,781.76 × 34,755.92
  4. Step 4: Simplify right side
    69,851.60x = 3,641,786,468.02
  5. Step 5: Solve for x
    x = 3,641,786,468.02/69,851.60
  6. Step 6: Final answer
    x = 52,136.05

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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.