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Finding the Fourth Proportional to 104,531.60, 156,797.40 and 25,644.80

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Solution

The fourth proportional to 104,531.60, 156,797.40 and 25,644.80 is: 38,467.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,531.60 : 156,797.40 = 25,644.80 : x
  2. Step 2: Convert to fraction form
    104,531.60/156,797.40 = 25,644.80/x
  3. Step 3: Cross multiply
    104,531.60x = 156,797.40 × 25,644.80
  4. Step 4: Simplify right side
    104,531.60x = 4,021,037,963.52
  5. Step 5: Solve for x
    x = 4,021,037,963.52/104,531.60
  6. Step 6: Final answer
    x = 38,467.20

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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.