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Finding the Fourth Proportional to 104,609.60, 156,914.40 and 38,051.90

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Solution

The fourth proportional to 104,609.60, 156,914.40 and 38,051.90 is: 57,077.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,609.60 : 156,914.40 = 38,051.90 : x
  2. Step 2: Convert to fraction form
    104,609.60/156,914.40 = 38,051.90/x
  3. Step 3: Cross multiply
    104,609.60x = 156,914.40 × 38,051.90
  4. Step 4: Simplify right side
    104,609.60x = 5,970,891,057.36
  5. Step 5: Solve for x
    x = 5,970,891,057.36/104,609.60
  6. Step 6: Final answer
    x = 57,077.85

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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.