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Finding the Fourth Proportional to 104,657.60, 156,985.68 and 34,542.56

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Solution

The fourth proportional to 104,657.60, 156,985.68 and 34,542.56 is: 51,813.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,657.60 : 156,985.68 = 34,542.56 : x
  2. Step 2: Convert to fraction form
    104,657.60/156,985.68 = 34,542.56/x
  3. Step 3: Cross multiply
    104,657.60x = 156,985.68 × 34,542.56
  4. Step 4: Simplify right side
    104,657.60x = 5,422,687,270.54
  5. Step 5: Solve for x
    x = 5,422,687,270.54/104,657.60
  6. Step 6: Final answer
    x = 51,813.60

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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.