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Finding the Fourth Proportional to 104,644.60, 156,963.43 and 45,480.34

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Solution

The fourth proportional to 104,644.60, 156,963.43 and 45,480.34 is: 68,219.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,644.60 : 156,963.43 = 45,480.34 : x
  2. Step 2: Convert to fraction form
    104,644.60/156,963.43 = 45,480.34/x
  3. Step 3: Cross multiply
    104,644.60x = 156,963.43 × 45,480.34
  4. Step 4: Simplify right side
    104,644.60x = 7,138,750,163.97
  5. Step 5: Solve for x
    x = 7,138,750,163.97/104,644.60
  6. Step 6: Final answer
    x = 68,219.00

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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.