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Finding the Fourth Proportional to 104,646.70, 156,968.64 and 25,761.58

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Solution

The fourth proportional to 104,646.70, 156,968.64 and 25,761.58 is: 38,642.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,646.70 : 156,968.64 = 25,761.58 : x
  2. Step 2: Convert to fraction form
    104,646.70/156,968.64 = 25,761.58/x
  3. Step 3: Cross multiply
    104,646.70x = 156,968.64 × 25,761.58
  4. Step 4: Simplify right side
    104,646.70x = 4,043,760,176.85
  5. Step 5: Solve for x
    x = 4,043,760,176.85/104,646.70
  6. Step 6: Final answer
    x = 38,642.02

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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.