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Finding the Fourth Proportional to 104,649.85, 156,879.83 and 38,042.94

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Solution

The fourth proportional to 104,649.85, 156,879.83 and 38,042.94 is: 57,029.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    104,649.85 : 156,879.83 = 38,042.94 : x
  2. Step 2: Convert to fraction form
    104,649.85/156,879.83 = 38,042.94/x
  3. Step 3: Cross multiply
    104,649.85x = 156,879.83 × 38,042.94
  4. Step 4: Simplify right side
    104,649.85x = 5,968,169,959.90
  5. Step 5: Solve for x
    x = 5,968,169,959.90/104,649.85
  6. Step 6: Final answer
    x = 57,029.90

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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.